diff --git a/◯ᗩIᗝI⚭◯⚪◯⚭IᗝIᗩ◯ⵙ◯ᗩIᗝI⚭◯⚪◯⚭IᗝIᗩ◯/◯✤ᴥᗩ◯ⵙ◯ᗩᴥ✤◯/◯ᗱᗴᴥᗩᗯ✤⏀Ⓞᔓᔕ◯ⵙ◯ᔓᔕⓄ⏀✤ᗯᗩᴥᗱᗴ◯/◯ᗝⵈ◯ⵙ◯ⵈᗝ◯/◯ᔓᔕⓄᴥᗱᗴᑐᑕⓄИNꖴ옷ᴥ◯⚪◯ᴥ옷ꖴИNⓄᑐᑕᗱᗴᴥⓄᔓᔕ◯ⵙ◯ᔓᔕⓄᴥᗱᗴᑐᑕⓄИNꖴ옷ᴥ◯⚪◯ᴥ옷ꖴИNⓄᑐᑕᗱᗴᴥⓄᔓᔕ◯/◯ᴥᗱᗴߦⓄ옷ᔓᔕᗩᴥᕤᕦ◯⚪◯ᕤᕦᴥᗩᔓᔕ옷Ⓞߦᗱᗴᴥ◯ⵙ◯ᴥᗱᗴߦⓄ옷ᔓᔕᗩᴥᕤᕦ◯⚪◯ᕤᕦᴥᗩᔓᔕ옷Ⓞߦᗱᗴᴥ◯/XHG.⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ⵙ⠀ᗱᗴ⠀ⵙ⠀ᗯ⠀ⵙ⠀ᴥ⠀ⵙ⠀ᑎ⠀ⵙ⠀ᑐᑕ⠀ⵙ⠀⠀⠀⠀◯⠀⠀⠀⠀ⵙ⠀✤⠀ⵙ⠀ИN⠀ⵙ⠀ᗱᗴ⠀ⵙ⠀ᕤᕦ⠀ⵙ⠀ИN⠀ⵙ⠀ᗩ⠀ⵙ⠀✤⠀ⵙ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀◯⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ⵙ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀◯⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ⵙ⠀✤⠀ⵙ⠀ᗩ⠀ⵙ⠀ИN⠀ⵙ⠀ᕤᕦ⠀ⵙ⠀ᗱᗴ⠀ⵙ⠀ИN⠀ⵙ⠀✤⠀ⵙ⠀⠀⠀⠀◯⠀⠀⠀⠀ⵙ⠀ᑐᑕ⠀ⵙ⠀ᑎ⠀ⵙ⠀ᴥ⠀ⵙ⠀ᗯ⠀ⵙ⠀ᗱᗴ⠀ⵙ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀.GHX b/◯ᗩIᗝI⚭◯⚪◯⚭IᗝIᗩ◯ⵙ◯ᗩIᗝI⚭◯⚪◯⚭IᗝIᗩ◯/◯✤ᴥᗩ◯ⵙ◯ᗩᴥ✤◯/◯ᗱᗴᴥᗩᗯ✤⏀Ⓞᔓᔕ◯ⵙ◯ᔓᔕⓄ⏀✤ᗯᗩᴥᗱᗴ◯/◯ᗝⵈ◯ⵙ◯ⵈᗝ◯/◯ᔓᔕⓄᴥᗱᗴᑐᑕⓄИNꖴ옷ᴥ◯⚪◯ᴥ옷ꖴИNⓄᑐᑕᗱᗴᴥⓄᔓᔕ◯ⵙ◯ᔓᔕⓄᴥᗱᗴᑐᑕⓄИNꖴ옷ᴥ◯⚪◯ᴥ옷ꖴИNⓄᑐᑕᗱᗴᴥⓄᔓᔕ◯/◯ᴥᗱᗴߦⓄ옷ᔓᔕᗩᴥᕤᕦ◯⚪◯ᕤᕦᴥᗩᔓᔕ옷Ⓞߦᗱᗴᴥ◯ⵙ◯ᴥᗱᗴߦⓄ옷ᔓᔕᗩᴥᕤᕦ◯⚪◯ᕤᕦᴥᗩᔓᔕ옷Ⓞߦᗱᗴᴥ◯/XHG.⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ⵙ⠀ᗱᗴ⠀ⵙ⠀ᗯ⠀ⵙ⠀ᴥ⠀ⵙ⠀ᑎ⠀ⵙ⠀ᑐᑕ⠀ⵙ⠀⠀⠀⠀◯⠀⠀⠀⠀ⵙ⠀✤⠀ⵙ⠀ИN⠀ⵙ⠀ᗱᗴ⠀ⵙ⠀ᕤᕦ⠀ⵙ⠀ИN⠀ⵙ⠀ᗩ⠀ⵙ⠀✤⠀ⵙ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀◯⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ⵙ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀◯⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ⵙ⠀✤⠀ⵙ⠀ᗩ⠀ⵙ⠀ИN⠀ⵙ⠀ᕤᕦ⠀ⵙ⠀ᗱᗴ⠀ⵙ⠀ИN⠀ⵙ⠀✤⠀ⵙ⠀⠀⠀⠀◯⠀⠀⠀⠀ⵙ⠀ᑐᑕ⠀ⵙ⠀ᑎ⠀ⵙ⠀ᴥ⠀ⵙ⠀ᗯ⠀ⵙ⠀ᗱᗴ⠀ⵙ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀.GHX
new file mode 100644
index 00000000..4efa863e
--- /dev/null
+++ b/◯ᗩIᗝI⚭◯⚪◯⚭IᗝIᗩ◯ⵙ◯ᗩIᗝI⚭◯⚪◯⚭IᗝIᗩ◯/◯✤ᴥᗩ◯ⵙ◯ᗩᴥ✤◯/◯ᗱᗴᴥᗩᗯ✤⏀Ⓞᔓᔕ◯ⵙ◯ᔓᔕⓄ⏀✤ᗯᗩᴥᗱᗴ◯/◯ᗝⵈ◯ⵙ◯ⵈᗝ◯/◯ᔓᔕⓄᴥᗱᗴᑐᑕⓄИNꖴ옷ᴥ◯⚪◯ᴥ옷ꖴИNⓄᑐᑕᗱᗴᴥⓄᔓᔕ◯ⵙ◯ᔓᔕⓄᴥᗱᗴᑐᑕⓄИNꖴ옷ᴥ◯⚪◯ᴥ옷ꖴИNⓄᑐᑕᗱᗴᴥⓄᔓᔕ◯/◯ᴥᗱᗴߦⓄ옷ᔓᔕᗩᴥᕤᕦ◯⚪◯ᕤᕦᴥᗩᔓᔕ옷Ⓞߦᗱᗴᴥ◯ⵙ◯ᴥᗱᗴߦⓄ옷ᔓᔕᗩᴥᕤᕦ◯⚪◯ᕤᕦᴥᗩᔓᔕ옷Ⓞߦᗱᗴᴥ◯/XHG.⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ⵙ⠀ᗱᗴ⠀ⵙ⠀ᗯ⠀ⵙ⠀ᴥ⠀ⵙ⠀ᑎ⠀ⵙ⠀ᑐᑕ⠀ⵙ⠀⠀⠀⠀◯⠀⠀⠀⠀ⵙ⠀✤⠀ⵙ⠀ИN⠀ⵙ⠀ᗱᗴ⠀ⵙ⠀ᕤᕦ⠀ⵙ⠀ИN⠀ⵙ⠀ᗩ⠀ⵙ⠀✤⠀ⵙ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀◯⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ⵙ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀◯⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ⵙ⠀✤⠀ⵙ⠀ᗩ⠀ⵙ⠀ИN⠀ⵙ⠀ᕤᕦ⠀ⵙ⠀ᗱᗴ⠀ⵙ⠀ИN⠀ⵙ⠀✤⠀ⵙ⠀⠀⠀⠀◯⠀⠀⠀⠀ⵙ⠀ᑐᑕ⠀ⵙ⠀ᑎ⠀ⵙ⠀ᴥ⠀ⵙ⠀ᗯ⠀ⵙ⠀ᗱᗴ⠀ⵙ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀.GHX
@@ -0,0 +1,37635 @@
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+<Archive name="Root">
+  <!--Grasshopper archive-->
+  <!--Grasshopper and GH_IO.dll are copyrighted by Robert McNeel & Associates-->
+  <!--Archive generated by GH_IO.dll file utility library {0.2.0002}-->
+  <items count="1">
+    <item name="ArchiveVersion" type_name="gh_version" type_code="80">
+      <Major>0</Major>
+      <Minor>2</Minor>
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+    </item>
+  </items>
+  <chunks count="2">
+    <chunk name="Definition">
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+        <item name="plugin_version" type_name="gh_version" type_code="80">
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+          </items>
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+            <chunk name="Projection">
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+                <item name="Target" type_name="gh_drawing_point" type_code="30">
+                  <X>26</X>
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+        </chunk>
+        <chunk name="GHALibraries">
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+                <item name="Name" type_name="gh_string" type_code="10"></item>
+                <item name="Version" type_name="gh_string" type_code="10"></item>
+              </items>
+            </chunk>
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+        <chunk name="DefinitionObjects">
+          <items count="1">
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+          </items>
+          <chunks count="312">
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+                <chunk name="Container">
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+                    <item name="Border" type_name="gh_int32" type_code="3">1</item>
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+                      <ARGB>255;255;255;255</ARGB>
+                    </item>
+                    <item name="Description" type_name="gh_string" type_code="10">A group of Grasshopper objects</item>
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
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+                              <chunks count="1">
+                                <chunk name="Item" index="0">
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+                                    <item name="number" type_name="gh_double" type_code="6">0.5</item>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve degree (only odd degrees are supported)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">f528066a-b1b8-4648-8e8a-f600ac0aacf0</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Degree</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Degree</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <Y>-341</Y>
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+                              <X>296.5</X>
+                              <Y>-331</Y>
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+                              </chunks>
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+                          </chunks>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Resulting nurbs curve</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">25eb22bf-13f0-4ea5-aae0-9e309df9dbc9</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <Y>-401</Y>
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+                              <X>371</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">e632426a-8231-45fe-b885-7244c9c6463b</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
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+                              <Y>-375</Y>
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+                              <X>371</X>
+                              <Y>-361</Y>
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+                    </chunk>
+                    <chunk name="param_output" index="2">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve domain</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">9e6357f8-fb49-4b90-8f80-67050ddc0f10</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Domain</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Domain</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>349</X>
+                              <Y>-348</Y>
+                              <W>41</W>
+                              <H>27</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>371</X>
+                              <Y>-334.3333</Y>
+                            </item>
+                          </items>
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+                <item name="GUID" type_name="gh_guid" type_code="9">807b86e3-be8d-4970-92b5-f8cdcb45b06b</item>
+                <item name="Name" type_name="gh_string" type_code="10">Circle</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Create a circle defined by base plane and radius.</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">72ae135e-52ab-48d2-b870-da6847169e64</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Circle</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Circle</item>
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+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>136</X>
+                          <Y>410</Y>
+                          <W>102</W>
+                          <H>44</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>189</X>
+                          <Y>432</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="param_input" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Base plane of circle</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">3075bd90-3bb7-48e6-9ecf-f8032818c73e</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Plane</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Plane</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>138</X>
+                              <Y>412</Y>
+                              <W>36</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>157.5</X>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="plane" type_name="gh_plane" type_code="72">
+                                      <Ox>0</Ox>
+                                      <Oy>0</Oy>
+                                      <Oz>0</Oz>
+                                      <Xx>1</Xx>
+                                      <Xy>0</Xy>
+                                      <Xz>0</Xz>
+                                      <Yx>0</Yx>
+                                      <Yy>1</Yy>
+                                      <Yz>0</Yz>
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+                                  </items>
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+                        <item name="Description" type_name="gh_string" type_code="10">Radius of circle</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">3831b221-1fae-4fc1-becd-1c658480b7ca</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Radius</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Radius</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>138</X>
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+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>157.5</X>
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+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">0.5</item>
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+                          </chunks>
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+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Resulting circle</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">f1a6b9a1-9417-404c-9af7-98d98e7d12e6</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Circle</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Circle</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <chunk name="Attributes">
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+                              <X>204</X>
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+                              <W>32</W>
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+                              <X>221.5</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Circle</item>
+              </items>
+              <chunks count="1">
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+                    <item name="Description" type_name="gh_string" type_code="10">Create a circle defined by base plane and radius.</item>
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+                    <item name="Name" type_name="gh_string" type_code="10">Circle</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Circle</item>
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+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>424</X>
+                          <Y>410</Y>
+                          <W>102</W>
+                          <H>44</H>
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+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>477</X>
+                          <Y>432</Y>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Base plane of circle</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">9e0b825c-33ca-4b5b-840e-eb33be2fa971</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Plane</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Plane</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>426</X>
+                              <Y>412</Y>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>445.5</X>
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+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
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+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="plane" type_name="gh_plane" type_code="72">
+                                      <Ox>2</Ox>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Radius of circle</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">19dfa98f-9b47-458f-857a-09a8f7ee8019</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Radius</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Radius</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>426</X>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>445.5</X>
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+                          <items count="1">
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+                          <chunks count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">0.5</item>
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+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
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+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Resulting circle</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">bb08b502-315b-4409-a5d0-d19da0339ccf</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Circle</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Circle</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>492</X>
+                              <Y>412</Y>
+                              <W>32</W>
+                              <H>40</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>509.5</X>
+                              <Y>432</Y>
+                            </item>
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+                <item name="GUID" type_name="gh_guid" type_code="9">4c619bc9-39fd-4717-82a6-1e07ea237bbe</item>
+                <item name="Name" type_name="gh_string" type_code="10">Line SDL</item>
+              </items>
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+                    <item name="Description" type_name="gh_string" type_code="10">Create a line segment defined by start point, tangent and length.}</item>
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+                    <item name="Name" type_name="gh_string" type_code="10">Line SDL</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Line SDL</item>
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+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>134</X>
+                          <Y>238</Y>
+                          <W>106</W>
+                          <H>64</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>198</X>
+                          <Y>270</Y>
+                        </item>
+                      </items>
+                    </chunk>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Line start point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">77805371-a492-4cb6-aacb-816082629913</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <item name="InputId" index="6" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                        <item name="OutputCount" type_name="gh_int32" type_code="3">1</item>
+                        <item name="OutputId" index="0" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                      </items>
+                      <chunks count="8">
+                        <chunk name="InputParam" index="0">
+                          <items count="10">
+                            <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Data stream 1</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">8155bfb3-d93a-4a61-806f-bc99fd54e2de</item>
+                            <item name="Mapping" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Data 1</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">D1</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">045a7978-fe81-48c1-bf2e-177b5855f446</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>281</X>
+                                  <Y>-297</Y>
+                                  <W>35</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>308</X>
+                                  <Y>-287</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="1">
+                          <items count="10">
+                            <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Data stream 2</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">e5ab8e64-2ed4-484e-869b-718565ece1af</item>
+                            <item name="Mapping" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Data 2</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">D2</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">77ea7a48-7bf3-4949-a8e6-36f4087d8a9a</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>281</X>
+                                  <Y>-277</Y>
+                                  <W>35</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>308</X>
+                                  <Y>-267</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="2">
+                          <items count="10">
+                            <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Data stream 3</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">8c7ff479-bfad-4543-b2ef-a078d78be281</item>
+                            <item name="Mapping" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Data 3</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">D3</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">0485e3e3-3ff2-4ffa-84c1-59b24a6264d8</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>281</X>
+                                  <Y>-257</Y>
+                                  <W>35</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>308</X>
+                                  <Y>-247</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="3">
+                          <items count="10">
+                            <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Data stream 4</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">183288a4-c340-4a15-9a6c-666058d646c6</item>
+                            <item name="Mapping" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Data 4</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">D4</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">7a3691f4-4f94-443d-ba36-0e379884ae71</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>281</X>
+                                  <Y>-237</Y>
+                                  <W>35</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>308</X>
+                                  <Y>-227</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="4">
+                          <items count="10">
+                            <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Data stream 5</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">32cd1d68-450c-4bd6-bc51-735048412bd0</item>
+                            <item name="Mapping" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Data 5</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">D5</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">3aeb3c35-a809-4bcf-bda1-0f778dde0f14</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>281</X>
+                                  <Y>-217</Y>
+                                  <W>35</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>308</X>
+                                  <Y>-207</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="5">
+                          <items count="10">
+                            <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Data stream 6</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">d3ed12bb-77cd-4626-9133-5c2c8ca6eef5</item>
+                            <item name="Mapping" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Data 6</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">D6</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">045a7978-fe81-48c1-bf2e-177b5855f446</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>281</X>
+                                  <Y>-197</Y>
+                                  <W>35</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>308</X>
+                                  <Y>-187</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="6">
+                          <items count="8">
+                            <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Data stream 7</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">f7ab5626-4de7-4cfa-9eb0-77bb13cf607c</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Data 7</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">D7</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>281</X>
+                                  <Y>-177</Y>
+                                  <W>35</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>308</X>
+                                  <Y>-167</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="OutputParam" index="0">
+                          <items count="7">
+                            <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Result of merge</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">da0cc833-51e1-4abd-be96-50edad93b96e</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Result</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Result</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>346</X>
+                                  <Y>-297</Y>
+                                  <W>34</W>
+                                  <H>140</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>364.5</X>
+                                  <Y>-227</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="17">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">3cadddef-1e2b-4c09-9390-0e8f78f7609f</item>
+                <item name="Name" type_name="gh_string" type_code="10">Merge</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Merge a bunch of data streams</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">c2ee60e2-21d7-49d3-bd50-c78297d982b5</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Merge</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Merge</item>
+                  </items>
+                  <chunks count="2">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>279</X>
+                          <Y>-162</Y>
+                          <W>103</W>
+                          <H>144</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>331</X>
+                          <Y>-90</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="ParameterData">
+                      <items count="10">
+                        <item name="InputCount" type_name="gh_int32" type_code="3">7</item>
+                        <item name="InputId" index="0" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                        <item name="InputId" index="1" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                        <item name="InputId" index="2" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                        <item name="InputId" index="3" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                        <item name="InputId" index="4" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                        <item name="InputId" index="5" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                        <item name="InputId" index="6" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                        <item name="OutputCount" type_name="gh_int32" type_code="3">1</item>
+                        <item name="OutputId" index="0" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                      </items>
+                      <chunks count="8">
+                        <chunk name="InputParam" index="0">
+                          <items count="10">
+                            <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Data stream 1</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">1ff922ac-bcc8-4d43-96b2-8b033a143c0d</item>
+                            <item name="Mapping" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Data 1</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">D1</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">5351cd62-e434-47d0-b5d1-6001426b988f</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>281</X>
+                                  <Y>-160</Y>
+                                  <W>35</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>308</X>
+                                  <Y>-150</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="1">
+                          <items count="10">
+                            <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Data stream 2</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">b190a698-264d-41f0-9064-93d3c6170278</item>
+                            <item name="Mapping" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Data 2</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">D2</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">d6107eb6-a487-4e4f-bc47-c2a890049617</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>281</X>
+                                  <Y>-140</Y>
+                                  <W>35</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>308</X>
+                                  <Y>-130</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="2">
+                          <items count="10">
+                            <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Data stream 3</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">3b664462-93da-4e4b-bf6a-af5122c81f5d</item>
+                            <item name="Mapping" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Data 3</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">D3</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">6b66291e-7549-421c-8340-85143ff941fc</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>281</X>
+                                  <Y>-120</Y>
+                                  <W>35</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>308</X>
+                                  <Y>-110</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="3">
+                          <items count="10">
+                            <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Data stream 4</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">18140b96-f48e-4f4b-afac-d8b9dd4b6a02</item>
+                            <item name="Mapping" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Data 4</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">D4</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">0df9eac9-7925-4b0b-866b-a8da8fdd5559</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>281</X>
+                                  <Y>-100</Y>
+                                  <W>35</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>308</X>
+                                  <Y>-90</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="4">
+                          <items count="10">
+                            <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Data stream 5</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">eb2bf8ce-374d-4c6d-a5b0-55c4e30c0053</item>
+                            <item name="Mapping" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Data 5</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">D5</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">201753c7-2695-4d38-b517-37da23428c07</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>281</X>
+                                  <Y>-80</Y>
+                                  <W>35</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>308</X>
+                                  <Y>-70</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="5">
+                          <items count="10">
+                            <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Data stream 6</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">85c4970b-a3cf-4368-bb76-157d507b4536</item>
+                            <item name="Mapping" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Data 6</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">D6</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">5351cd62-e434-47d0-b5d1-6001426b988f</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>281</X>
+                                  <Y>-60</Y>
+                                  <W>35</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>308</X>
+                                  <Y>-50</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="6">
+                          <items count="8">
+                            <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Data stream 7</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">013fcd44-1c04-4f9e-85b6-e54cfd22cdae</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Data 7</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">D7</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>281</X>
+                                  <Y>-40</Y>
+                                  <W>35</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>308</X>
+                                  <Y>-30</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="OutputParam" index="0">
+                          <items count="7">
+                            <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Result of merge</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">68f9c609-0f78-4572-a36e-80dc00e8f1b4</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Result</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Result</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>346</X>
+                                  <Y>-160</Y>
+                                  <W>34</W>
+                                  <H>140</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>364.5</X>
+                                  <Y>-90</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="18">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">22990b1f-9be6-477c-ad89-f775cd347105</item>
+                <item name="Name" type_name="gh_string" type_code="10">Flip Curve</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Flip a curve using an optional guide curve.</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">fdd4ad62-39ab-4426-8d7c-fc12f3da8ac6</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Flip Curve</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Flip Curve</item>
+                  </items>
+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>425</X>
+                          <Y>366</Y>
+                          <W>100</W>
+                          <H>44</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>475</X>
+                          <Y>388</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="param_input" index="0">
+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve to flip</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">3744484d-a1da-4c7c-8465-b5f91ce0e23a</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">bb08b502-315b-4409-a5d0-d19da0339ccf</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>427</X>
+                              <Y>368</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>445</X>
+                              <Y>378</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Optional guide curve</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">863d6ebe-d780-4ea8-af8d-0b6fac127470</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Guide</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Guide</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>427</X>
+                              <Y>388</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>445</X>
+                              <Y>398</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Flipped curve</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">a81b26ab-2360-4ae6-baad-8364c381ef7a</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>490</X>
+                              <Y>368</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>508</X>
+                              <Y>378</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Flip action</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">c8d65095-19e6-44af-b356-327b94c52d9b</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Flag</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Flag</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>490</X>
+                              <Y>388</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>508</X>
+                              <Y>398</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="19">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">22990b1f-9be6-477c-ad89-f775cd347105</item>
+                <item name="Name" type_name="gh_string" type_code="10">Flip Curve</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Flip a curve using an optional guide curve.</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">3e7c64f7-14d4-4f8f-85db-9413944b3d68</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Flip Curve</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Flip Curve</item>
+                  </items>
+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>137</X>
+                          <Y>366</Y>
+                          <W>100</W>
+                          <H>44</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>187</X>
+                          <Y>388</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="param_input" index="0">
+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve to flip</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">b5049e36-128f-497f-b627-62c5c75c6434</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">f1a6b9a1-9417-404c-9af7-98d98e7d12e6</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>139</X>
+                              <Y>368</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>157</X>
+                              <Y>378</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Optional guide curve</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">e0608164-208b-4321-a008-aff48f3791f0</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Guide</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Guide</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>139</X>
+                              <Y>388</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>157</X>
+                              <Y>398</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Flipped curve</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">03e979e6-ae1d-4f01-bd07-15575fc7b82f</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>202</X>
+                              <Y>368</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>220</X>
+                              <Y>378</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Flip action</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">993a8d0b-4630-463a-b7a3-ec05a854c953</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Flag</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Flag</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>202</X>
+                              <Y>388</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
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+                              <X>220</X>
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+                            </item>
+                          </items>
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+                <item name="GUID" type_name="gh_guid" type_code="9">22990b1f-9be6-477c-ad89-f775cd347105</item>
+                <item name="Name" type_name="gh_string" type_code="10">Flip Curve</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Flip a curve using an optional guide curve.</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">5077e3f2-0be7-477b-8af7-e86fab08ebbb</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Flip Curve</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Flip Curve</item>
+                  </items>
+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>137</X>
+                          <Y>86</Y>
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+                        </item>
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+                          <X>187</X>
+                          <Y>108</Y>
+                        </item>
+                      </items>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve to flip</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">bd18da13-16a6-4d41-bf3c-3c9221964751</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">eb7f7f11-501f-4816-beb5-9d6d436e7583</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>139</X>
+                              <Y>88</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>157</X>
+                              <Y>98</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="6">
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+                              <Y>-1305</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Radius of arc or circle</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">05da292a-940f-4348-91d7-9451ac1c5838</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Radius</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Radius</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>340</X>
+                              <Y>-1295</Y>
+                              <W>57</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>370</X>
+                              <Y>-1285</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="2">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Angle domain (in radians) of arc</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ccc36b84-08d5-4075-a921-9c6320ddef9f</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Angle</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Angle</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>340</X>
+                              <Y>-1275</Y>
+                              <W>57</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>370</X>
+                              <Y>-1265</Y>
+                            </item>
+                          </items>
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+                      </chunks>
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+                  </chunks>
+                </chunk>
+              </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">797d922f-3a1d-46fe-9155-358b009b5997</item>
+                <item name="Name" type_name="gh_string" type_code="10">One Over X</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="5">
+                    <item name="Description" type_name="gh_string" type_code="10">Compute one over x.</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">95d988b2-6208-4898-9b88-4047415e1963</item>
+                    <item name="Name" type_name="gh_string" type_code="10">One Over X</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">One Over X</item>
+                  </items>
+                  <chunks count="3">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>292</X>
+                          <Y>-1813</Y>
+                          <W>100</W>
+                          <H>28</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>341</X>
+                          <Y>-1799</Y>
+                        </item>
+                      </items>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Input value</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">fbdba834-e9df-4685-bc2d-5ca452c88905</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Value</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Value</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">3209bc4c-b158-4a58-86bd-8b93b4d22b24</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>294</X>
+                              <Y>-1811</Y>
+                              <W>32</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>311.5</X>
+                              <Y>-1799</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Output value</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">18ba85b9-276a-41ad-bda5-f1fa99930fda</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Result</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Result</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>356</X>
+                              <Y>-1811</Y>
+                              <W>34</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>374.5</X>
+                              <Y>-1799</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
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+                  </chunks>
+                </chunk>
+              </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">2b69bf71-4e69-43aa-b7be-4f6ce7e45bef</item>
+                <item name="Name" type_name="gh_string" type_code="10">Quick Graph</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="9">
+                    <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                    <item name="Description" type_name="gh_string" type_code="10">Display a set of y-values as a graph</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">ec7fb339-3f97-44be-9369-8daf61086031</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Quick Graph</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Quick Graph</item>
+                    <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                    <item name="SortOrder" type_name="gh_int32" type_code="3">0</item>
+                    <item name="Source" index="0" type_name="gh_guid" type_code="9">d92a26fc-9ebc-4cf7-8555-ca5d20758063</item>
+                    <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                  </items>
+                  <chunks count="1">
+                    <chunk name="Attributes">
+                      <items count="3">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>269</X>
+                          <Y>-1991</Y>
+                          <W>150</W>
+                          <H>150</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>269.9963</X>
+                          <Y>-1990.986</Y>
+                        </item>
+                        <item name="SelectedIndex" type_name="gh_int32" type_code="3">-1</item>
+                      </items>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="30">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">4c4e56eb-2f04-43f9-95a3-cc46a14f495a</item>
+                <item name="Name" type_name="gh_string" type_code="10">Line</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="5">
+                    <item name="Description" type_name="gh_string" type_code="10">Create a line between two points.</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">f917c241-832a-40fd-9010-5479f99384d1</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Line</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Line</item>
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+                  <chunks count="4">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>285</X>
+                          <Y>-1749</Y>
+                          <W>114</W>
+                          <H>44</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>357</X>
+                          <Y>-1727</Y>
+                        </item>
+                      </items>
+                    </chunk>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Line start point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">551910d9-1d9e-4ba5-b35b-fc52b9666009</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start Point</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">34538e8e-45c1-4cd9-8bfd-10beabd2f287</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>287</X>
+                              <Y>-1747</Y>
+                              <W>55</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>316</X>
+                              <Y>-1737</Y>
+                            </item>
+                          </items>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Line end point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">5dc6afa2-1ff9-4f0c-b73e-410996610536</item>
+                        <item name="Name" type_name="gh_string" type_code="10">End Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">End Point</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">61b0964d-914f-48f1-a3db-0a87b0de181e</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>287</X>
+                              <Y>-1727</Y>
+                              <W>55</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>316</X>
+                              <Y>-1717</Y>
+                            </item>
+                          </items>
+                        </chunk>
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+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Line segment</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">303bce1c-549d-4ba2-a0b8-ecc3df759a95</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Line</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Line</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>372</X>
+                              <Y>-1747</Y>
+                              <W>25</W>
+                              <H>40</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>386</X>
+                              <Y>-1727</Y>
+                            </item>
+                          </items>
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+                  </chunks>
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+              </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">4c619bc9-39fd-4717-82a6-1e07ea237bbe</item>
+                <item name="Name" type_name="gh_string" type_code="10">Line SDL</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Create a line segment defined by start point, tangent and length.}</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">233ccf20-4a5c-41e2-9988-424b9df8a75b</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Line SDL</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Line SDL</item>
+                  </items>
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+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>281</X>
+                          <Y>-2944</Y>
+                          <W>122</W>
+                          <H>64</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>361</X>
+                          <Y>-2912</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="param_input" index="0">
+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Line start point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">cf89bc55-e9ed-4ebf-acc8-1f8382497744</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">34538e8e-45c1-4cd9-8bfd-10beabd2f287</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>283</X>
+                              <Y>-2942</Y>
+                              <W>63</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
+                              <Y>-2932</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Line tangent (direction)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">2c218282-41e4-4425-b583-be5d05358f75</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Direction</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Direction</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">c3c7fb12-604a-4d95-b97d-c2e973ac1b37</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>283</X>
+                              <Y>-2922</Y>
+                              <W>63</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
+                              <Y>-2912</Y>
+                            </item>
+                          </items>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="vector" type_name="gh_point3d" type_code="51">
+                                      <X>0</X>
+                                      <Y>0</Y>
+                                      <Z>1</Z>
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+                    </chunk>
+                    <chunk name="param_input" index="2">
+                      <items count="8">
+                        <item name="Description" type_name="gh_string" type_code="10">Line length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">28da4a35-728a-46ab-8fb0-44dc65447f7d</item>
+                        <item name="InternalExpression" type_name="gh_string" type_code="10">-X</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">87a86308-bd68-4a57-b7ed-d1a865ae6cfb</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>283</X>
+                              <Y>-2902</Y>
+                              <W>63</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
+                              <Y>-2892</Y>
+                            </item>
+                          </items>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">1</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
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+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Line segment</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">c64376e1-0045-4550-9c48-814358db81b2</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Line</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Line</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>376</X>
+                              <Y>-2942</Y>
+                              <W>25</W>
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+                              <X>330</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">The material override</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">b27aa039-e16c-4871-ac51-9927a57ec756</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
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+                                      <ARGB>255;221;160;221</ARGB>
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+                                      <ARGB>255;66;48;66</ARGB>
+                                    </item>
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+                                      <ARGB>255;255;255;255</ARGB>
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+                                      <ARGB>255;176;176;176</ARGB>
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+                        <item name="Description" type_name="gh_string" type_code="10">Colour of the specular highlight</item>
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+                                      <ARGB>255;0;255;255</ARGB>
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+                                      <ARGB>255;0;0;0</ARGB>
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+                        <item name="Description" type_name="gh_string" type_code="10">Amount of transparency (0.0 = opaque, 1.0 = transparent</item>
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+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ea97d156-3651-4c8f-9ead-dcbf333954f0</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
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+                                  <items count="5">
+                                    <item name="diffuse" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;221;160;221</ARGB>
+                                    </item>
+                                    <item name="emission" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;66;48;66</ARGB>
+                                    </item>
+                                    <item name="shine" type_name="gh_double" type_code="6">0.5</item>
+                                    <item name="specular" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;255;255;255</ARGB>
+                                    </item>
+                                    <item name="transparency" type_name="gh_double" type_code="6">0</item>
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+                        <item name="Locked" type_name="gh_bool" type_code="1">true</item>
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+                            <item name="Name" type_name="gh_string" type_code="10">A</item>
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+                        <chunk name="InputParam" index="0">
+                          <items count="8">
+                            <item name="Description" type_name="gh_string" type_code="10">Expression variable</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">2b94cdae-812f-4282-9970-8550ee4833cf</item>
+                            <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Variable O</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">O</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">aa9a97c1-b505-4d4d-8b0c-fb1d882ef6a6</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>247</X>
+                                  <Y>-2078</Y>
+                                  <W>14</W>
+                                  <H>24</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>255.5</X>
+                                  <Y>-2066</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="OutputParam" index="0">
+                          <items count="7">
+                            <item name="Description" type_name="gh_string" type_code="10">Result of expression</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">08a8ff21-6362-4499-a17d-ad0a6314d397</item>
+                            <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Result</item>
+                            <item name="NickName" type_name="gh_string" type_code="10"> </item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>428</X>
+                                  <Y>-2078</Y>
+                                  <W>9</W>
+                                  <H>24</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>434</X>
+                                  <Y>-2066</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="56">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">59e0b89a-e487-49f8-bab8-b5bab16be14c</item>
+                <item name="Name" type_name="gh_string" type_code="10">Panel</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="9">
+                    <item name="Description" type_name="gh_string" type_code="10">A panel for custom notes and text values</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">3d8049c1-0ee0-4220-bbbc-cf2e4058a74f</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Panel</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"></item>
+                    <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                    <item name="ScrollRatio" type_name="gh_double" type_code="6">0</item>
+                    <item name="Source" index="0" type_name="gh_guid" type_code="9">08a8ff21-6362-4499-a17d-ad0a6314d397</item>
+                    <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                    <item name="UserText" type_name="gh_string" type_code="10">Double click to edit panel content…</item>
+                  </items>
+                  <chunks count="2">
+                    <chunk name="Attributes">
+                      <items count="5">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>244</X>
+                          <Y>-2362</Y>
+                          <W>200</W>
+                          <H>271</H>
+                        </item>
+                        <item name="MarginLeft" type_name="gh_int32" type_code="3">0</item>
+                        <item name="MarginRight" type_name="gh_int32" type_code="3">0</item>
+                        <item name="MarginTop" type_name="gh_int32" type_code="3">0</item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>244.4094</X>
+                          <Y>-2361.006</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="PanelProperties">
+                      <items count="7">
+                        <item name="Colour" type_name="gh_drawing_color" type_code="36">
+                          <ARGB>255;255;255;255</ARGB>
+                        </item>
+                        <item name="DrawIndices" type_name="gh_bool" type_code="1">true</item>
+                        <item name="DrawPaths" type_name="gh_bool" type_code="1">true</item>
+                        <item name="Multiline" type_name="gh_bool" type_code="1">true</item>
+                        <item name="SpecialCodes" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Stream" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Wrap" type_name="gh_bool" type_code="1">true</item>
+                      </items>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="57">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">b6236720-8d88-4289-93c3-ac4c99f9b97b</item>
+                <item name="Name" type_name="gh_string" type_code="10">Relay</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="8">
+                    <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                    <item name="Description" type_name="gh_string" type_code="10">A wire relay object</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">eef65a68-345b-4553-8bd2-2e34a011183d</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Relay</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"> </item>
+                    <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                    <item name="Source" index="0" type_name="gh_guid" type_code="9">3d8049c1-0ee0-4220-bbbc-cf2e4058a74f</item>
+                    <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                  </items>
+                  <chunks count="1">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>322</X>
+                          <Y>-2408</Y>
+                          <W>40</W>
+                          <H>16</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>342</X>
+                          <Y>-2400</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="58">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">b6236720-8d88-4289-93c3-ac4c99f9b97b</item>
+                <item name="Name" type_name="gh_string" type_code="10">Relay</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="8">
+                    <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                    <item name="Description" type_name="gh_string" type_code="10">A wire relay object</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">aa9a97c1-b505-4d4d-8b0c-fb1d882ef6a6</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Relay</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"> </item>
+                    <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                    <item name="Source" index="0" type_name="gh_guid" type_code="9">d92a26fc-9ebc-4cf7-8555-ca5d20758063</item>
+                    <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                  </items>
+                  <chunks count="1">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>322</X>
+                          <Y>-2033</Y>
+                          <W>40</W>
+                          <H>16</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>342</X>
+                          <Y>-2025</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="59">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">c75b62fa-0a33-4da7-a5bd-03fd0068fd93</item>
+                <item name="Name" type_name="gh_string" type_code="10">Length</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="5">
+                    <item name="Description" type_name="gh_string" type_code="10">Measure the length of a curve.</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">b1675026-5196-4119-a33e-1a2b2d3aa486</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                  </items>
+                  <chunks count="3">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>290</X>
+                          <Y>-683</Y>
+                          <W>104</W>
+                          <H>28</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>340</X>
+                          <Y>-669</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="param_input" index="0">
+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve to measure</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">edaf629b-2776-49aa-953c-5e8714e22bea</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">b6eca665-6f03-4710-97cb-32685e1e9c7c</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>292</X>
+                              <Y>-681</Y>
+                              <W>33</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>310</X>
+                              <Y>-669</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">fe7076f0-6b08-477b-ba14-e24d0686a99d</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>355</X>
+                              <Y>-681</Y>
+                              <W>37</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>375</X>
+                              <Y>-669</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="60">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">ce46b74e-00c9-43c4-805a-193b69ea4a11</item>
+                <item name="Name" type_name="gh_string" type_code="10">Multiplication</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="5">
+                    <item name="Description" type_name="gh_string" type_code="10">Mathematical multiplication</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">074fc63a-52af-42e5-bebb-63a94047c569</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Multiplication</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Multiplication</item>
+                  </items>
+                  <chunks count="2">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>301</X>
+                          <Y>-2731</Y>
+                          <W>82</W>
+                          <H>44</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>332</X>
+                          <Y>-2709</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="ParameterData">
+                      <items count="5">
+                        <item name="InputCount" type_name="gh_int32" type_code="3">2</item>
+                        <item name="InputId" index="0" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                        <item name="InputId" index="1" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                        <item name="OutputCount" type_name="gh_int32" type_code="3">1</item>
+                        <item name="OutputId" index="0" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                      </items>
+                      <chunks count="3">
+                        <chunk name="InputParam" index="0">
+                          <items count="7">
+                            <item name="Description" type_name="gh_string" type_code="10">First item for multiplication</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">14b7b7a1-f696-40f4-a4e1-385aa646f809</item>
+                            <item name="Name" type_name="gh_string" type_code="10">A</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">A</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">43cb3048-7241-4139-a376-2e1682e9590e</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>303</X>
+                                  <Y>-2729</Y>
+                                  <W>14</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>311.5</X>
+                                  <Y>-2719</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="1">
+                          <items count="7">
+                            <item name="Description" type_name="gh_string" type_code="10">Second item for multiplication</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">9e925ca1-9af5-47f0-860b-5f49f46a267e</item>
+                            <item name="Name" type_name="gh_string" type_code="10">B</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">B</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">b172aa86-4fb2-46ba-8816-ae7c5293e801</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>303</X>
+                                  <Y>-2709</Y>
+                                  <W>14</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>311.5</X>
+                                  <Y>-2699</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="OutputParam" index="0">
+                          <items count="6">
+                            <item name="Description" type_name="gh_string" type_code="10">Result of multiplication</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">ca56c260-1f4a-4935-a007-94a03e0fbc85</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Result</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Result</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>347</X>
+                                  <Y>-2729</Y>
+                                  <W>34</W>
+                                  <H>40</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>365.5</X>
+                                  <Y>-2709</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="61">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">b6236720-8d88-4289-93c3-ac4c99f9b97b</item>
+                <item name="Name" type_name="gh_string" type_code="10">Relay</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="8">
+                    <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                    <item name="Description" type_name="gh_string" type_code="10">A wire relay object</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">f0081a6b-7002-460c-a506-4fc6acbb0717</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Relay</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"></item>
+                    <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                    <item name="Source" index="0" type_name="gh_guid" type_code="9">d92a26fc-9ebc-4cf7-8555-ca5d20758063</item>
+                    <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                  </items>
+                  <chunks count="1">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>322</X>
+                          <Y>-3440</Y>
+                          <W>40</W>
+                          <H>16</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>342</X>
+                          <Y>-3432</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="62">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">33bcf975-a0b2-4b54-99fd-585c893b9e88</item>
+                <item name="Name" type_name="gh_string" type_code="10">Digit Scroller</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="6">
+                    <item name="Description" type_name="gh_string" type_code="10">Numeric scroller for single numbers</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">30b91dbc-1cc7-44e0-a002-8b739db6700b</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Digit Scroller</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"> </item>
+                    <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
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+                              <X>387</X>
+                              <Y>-3906</Y>
+                            </item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Tangent vector at the specified length</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Tangent</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Tangent</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>359</X>
+                              <Y>-3896</Y>
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+                              <X>387</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve parameter at the specified length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">9cc57cc3-fcea-49a3-8d71-956c30343f16</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Parameter</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Parameter</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>359</X>
+                              <Y>-3876</Y>
+                              <W>53</W>
+                              <H>20</H>
+                            </item>
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+                              <X>387</X>
+                              <Y>-3866</Y>
+                            </item>
+                          </items>
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+                  </chunks>
+                </chunk>
+              </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">4c619bc9-39fd-4717-82a6-1e07ea237bbe</item>
+                <item name="Name" type_name="gh_string" type_code="10">Line SDL</item>
+              </items>
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+                    <item name="Description" type_name="gh_string" type_code="10">Create a line segment defined by start point, tangent and length.}</item>
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+                    <item name="Name" type_name="gh_string" type_code="10">Line SDL</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Line SDL</item>
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+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>281</X>
+                          <Y>-5551</Y>
+                          <W>122</W>
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+                          <X>361</X>
+                          <Y>-5519</Y>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Line start point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">2e8927af-a7a6-44cb-b097-60ced563bdd6</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">1f245287-a4bb-462e-803b-10a428c34788</item>
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+                        <chunk name="Attributes">
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+                              <X>283</X>
+                              <Y>-5549</Y>
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+                              <H>20</H>
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+                              <X>324</X>
+                              <Y>-5539</Y>
+                            </item>
+                          </items>
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+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Line tangent (direction)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">125e14be-07f6-4815-8fef-f2a404e22f23</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Direction</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Direction</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">d49d65a1-ab0e-404e-832a-56af0caf33d5</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>283</X>
+                              <Y>-5529</Y>
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+                              <X>324</X>
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+                          </items>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
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+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="vector" type_name="gh_point3d" type_code="51">
+                                      <X>0</X>
+                                      <Y>0</Y>
+                                      <Z>1</Z>
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+                                </chunk>
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+                            </chunk>
+                          </chunks>
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+                    </chunk>
+                    <chunk name="param_input" index="2">
+                      <items count="8">
+                        <item name="Description" type_name="gh_string" type_code="10">Line length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">2a9215eb-1569-4266-a9b2-19a7c5f5e785</item>
+                        <item name="InternalExpression" type_name="gh_string" type_code="10">ABS(X)</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">5a1b7d78-df7b-415f-a918-9b8856647f19</item>
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+                              <X>283</X>
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+                              <X>324</X>
+                              <Y>-5499</Y>
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+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">0.015625</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
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+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Line segment</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">f1ef4c2c-c83b-4d43-98c0-fb72236f88cc</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Line</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Line</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>376</X>
+                              <Y>-5549</Y>
+                              <W>25</W>
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+                              <X>390</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Relative Differences</item>
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+                    <item name="Description" type_name="gh_string" type_code="10">Compute relative differences for a list of data</item>
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+                    <item name="Name" type_name="gh_string" type_code="10">Relative Differences</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Relative Differences</item>
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+                          <X>331</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">List of data to operate on (numbers or points or vectors allowed)</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Values</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Values</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">30b4a045-d3ff-4182-a9be-b6ecdac7b148</item>
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+                              <X>280</X>
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+                              <X>299.5</X>
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+                          </items>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Differences between consecutive items</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">3543eea8-ccb2-4a16-ba0d-7da154bea245</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Differenced</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Differenced</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
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+                              <X>346</X>
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+                              <W>58</W>
+                              <H>24</H>
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+                              <X>376.5</X>
+                              <Y>-4247</Y>
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+                <item name="Name" type_name="gh_string" type_code="10">Replace Nulls</item>
+              </items>
+              <chunks count="1">
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+                  <items count="5">
+                    <item name="Description" type_name="gh_string" type_code="10">Replace nulls or invalid data with other data</item>
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+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">585b2b05-76bc-49fe-84bc-7ac188438233</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Replace Nulls</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Replace Nulls</item>
+                  </items>
+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>274</X>
+                          <Y>-4205</Y>
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+                          <H>44</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>360</X>
+                          <Y>-4183</Y>
+                        </item>
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+                      <items count="8">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Items to test for null</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">b991c4f8-6828-4b0a-925f-ea02ea1d23b5</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Items</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Items</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">dba5e2b1-2c7e-4684-90fe-6f8ffa37ee14</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>276</X>
+                              <Y>-4203</Y>
+                              <W>69</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>312</X>
+                              <Y>-4193</Y>
+                            </item>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Items to replace nulls with</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">8334fc01-c389-46cb-b0d9-ce519001e8ea</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Replacements</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Replacements</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                          <items count="2">
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+                              <X>276</X>
+                              <Y>-4183</Y>
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+                              <X>312</X>
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+                          <items count="1">
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+                          </items>
+                          <chunks count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="2">
+                                    <item name="TypeName" type_name="gh_string" type_code="10">Grasshopper.Kernel.Types.GH_Integer</item>
+                                    <item name="number" type_name="gh_int32" type_code="3">0</item>
+                                  </items>
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+                              </chunks>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">List without any nulls</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">30b4a045-d3ff-4182-a9be-b6ecdac7b148</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Items</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Items</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>375</X>
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+                              <X>393</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Number of items replaced</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">93c2645a-9f47-46a5-ba72-9833feea60b1</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Count</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Count</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>375</X>
+                              <Y>-4183</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
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+                              <X>393</X>
+                              <Y>-4173</Y>
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+                          </items>
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+                    <item name="Name" type_name="gh_string" type_code="10">List Length</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">List Length</item>
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+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>296</X>
+                          <Y>-4310</Y>
+                          <W>93</W>
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+                          <X>335</X>
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+                        <item name="Name" type_name="gh_string" type_code="10">List</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">List</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">3543eea8-ccb2-4a16-ba0d-7da154bea245</item>
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+                              <X>298</X>
+                              <Y>-4308</Y>
+                              <W>22</W>
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+                              <X>310.5</X>
+                              <Y>-4296</Y>
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+                        <item name="Description" type_name="gh_string" type_code="10">Number of items in L</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
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+                              <X>350</X>
+                              <Y>-4308</Y>
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+                              <X>370</X>
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+                <item name="Name" type_name="gh_string" type_code="10">List Item</item>
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+                    <item name="BaseOutputIndex" type_name="gh_int32" type_code="3">0</item>
+                    <item name="Description" type_name="gh_string" type_code="10">Retrieve a specific item from a list.</item>
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+                    <item name="Name" type_name="gh_string" type_code="10">List Item</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">List Item</item>
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+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>305</X>
+                          <Y>-4473</Y>
+                          <W>74</W>
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+                          <X>353</X>
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+                        <item name="InputId" index="0" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
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+                            <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Base list</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">326aed3c-1348-4128-bc5c-7995369c7168</item>
+                            <item name="Name" type_name="gh_string" type_code="10">List</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">List</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">3543eea8-ccb2-4a16-ba0d-7da154bea245</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>307</X>
+                                  <Y>-4471</Y>
+                                  <W>31</W>
+                                  <H>20</H>
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+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>324</X>
+                                  <Y>-4461</Y>
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+                            <item name="Description" type_name="gh_string" type_code="10">Item index</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">32b29e9e-974f-4bb4-850b-12d6d6415c23</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Index</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Index</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">fc2a6476-12e7-4e51-960a-2e0f722d872f</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                          <chunks count="2">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>307</X>
+                                  <Y>-4451</Y>
+                                  <W>31</W>
+                                  <H>20</H>
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+                                  <X>324</X>
+                                  <Y>-4441</Y>
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+                              <items count="1">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Branch" index="0">
+                                  <items count="2">
+                                    <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                    <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                                  </items>
+                                  <chunks count="1">
+                                    <chunk name="Item" index="0">
+                                      <items count="1">
+                                        <item name="number" type_name="gh_int32" type_code="3">0</item>
+                                      </items>
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+                                  </chunks>
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+                        <chunk name="InputParam" index="2">
+                          <items count="6">
+                            <item name="Description" type_name="gh_string" type_code="10">Wrap index to list bounds</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">5f5f3056-d849-4582-a6b3-dd6e6fcab270</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Wrap</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Wrap</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                          <chunks count="2">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>307</X>
+                                  <Y>-4431</Y>
+                                  <W>31</W>
+                                  <H>20</H>
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+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>324</X>
+                                  <Y>-4421</Y>
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+                              <items count="1">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Branch" index="0">
+                                  <items count="2">
+                                    <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                    <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                                  </items>
+                                  <chunks count="1">
+                                    <chunk name="Item" index="0">
+                                      <items count="1">
+                                        <item name="boolean" type_name="gh_bool" type_code="1">false</item>
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+                          <items count="7">
+                            <item name="Description" type_name="gh_string" type_code="10">Item at {i'}</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">8accd698-d1b5-4645-b680-e79f49ce4b3c</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Item</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">i</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>368</X>
+                                  <Y>-4471</Y>
+                                  <W>9</W>
+                                  <H>60</H>
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+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>374</X>
+                                  <Y>-4441</Y>
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+                <item name="Name" type_name="gh_string" type_code="10">Series</item>
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+                    <item name="Description" type_name="gh_string" type_code="10">Create a series of numbers.</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">f306378d-d190-402f-b579-6810c6153529</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Series</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Series</item>
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+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>284</X>
+                          <Y>-4391</Y>
+                          <W>117</W>
+                          <H>64</H>
+                        </item>
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+                          <X>350</X>
+                          <Y>-4359</Y>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">First number in the series</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">deefb998-0f55-41fc-904c-4a53ea9ac8cf</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>286</X>
+                              <Y>-4389</Y>
+                              <W>49</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>320</X>
+                              <Y>-4379</Y>
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+                          <items count="1">
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+                              <items count="2">
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+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">1</item>
+                                  </items>
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+                        <item name="Description" type_name="gh_string" type_code="10">Step size for each successive number</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">d794e885-ee9e-493f-bbe8-72243c08c2d2</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Step</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Step</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                          <items count="2">
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+                              <X>286</X>
+                              <Y>-4369</Y>
+                              <W>49</W>
+                              <H>20</H>
+                            </item>
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+                              <X>320</X>
+                              <Y>-4359</Y>
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+                          <items count="1">
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+                          </items>
+                          <chunks count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
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+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">1</item>
+                                  </items>
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+                        <item name="Description" type_name="gh_string" type_code="10">Number of values in the series</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">71a4992a-7986-4b3d-a962-50b87b073253</item>
+                        <item name="InternalExpression" type_name="gh_string" type_code="10">X-1</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Count</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Count</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">5a09a26e-536c-46a8-8a37-30f4f1e16cd8</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>286</X>
+                              <Y>-4349</Y>
+                              <W>49</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>320</X>
+                              <Y>-4339</Y>
+                            </item>
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+                          <items count="1">
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+                          </items>
+                          <chunks count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_int32" type_code="3">10</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
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+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">fc2a6476-12e7-4e51-960a-2e0f722d872f</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Series</item>
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+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>365</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Curve Closest Point</item>
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+                          <X>282</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Point to project onto curve</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
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+                              <X>284</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Point on the curve closest to the base point</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
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+                              <X>347</X>
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+                              <X>375</X>
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+                              <X>347</X>
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+                              <X>375</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Distance between base point and curve</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Distance</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Distance</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>375</X>
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+                    <item name="Description" type_name="gh_string" type_code="10">Create a line between two points.</item>
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+                          <X>285</X>
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+                          <X>357</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Line start point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">7f57bad3-fd5f-4d81-a1cf-ede32a2c4e01</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start Point</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                              <X>287</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Line end point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">41e822cf-29db-46bb-9f48-ba0fb934d7fa</item>
+                        <item name="Name" type_name="gh_string" type_code="10">End Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">End Point</item>
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+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">1f245287-a4bb-462e-803b-10a428c34788</item>
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+                              <X>287</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Line segment</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">d49d65a1-ab0e-404e-832a-56af0caf33d5</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Line</item>
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+                              <X>372</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Remap Numbers</item>
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+                    <item name="Description" type_name="gh_string" type_code="10">Remap numbers into a new numeric domain</item>
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+                    <item name="NickName" type_name="gh_string" type_code="10">Remap Numbers</item>
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+                      <items count="2">
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+                          <X>285</X>
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+                          <X>340</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Value to remap</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ccc4cc4d-e7ab-4257-8a2e-038063cad0c9</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Value</item>
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+                            <item name="Name" type_name="gh_string" type_code="10">A</item>
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+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">4f922c89-25cd-4ec7-8389-1a753b305964</item>
+                            <item name="Name" type_name="gh_string" type_code="10">A</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">A</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">fd8bd28b-a563-46fc-b271-ca8424e2facb</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>303</X>
+                                  <Y>-5339</Y>
+                                  <W>14</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>311.5</X>
+                                  <Y>-5329</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="1">
+                          <items count="7">
+                            <item name="Description" type_name="gh_string" type_code="10">Second item for multiplication</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">16e8d00a-896f-44e2-8643-9b69c422193f</item>
+                            <item name="Name" type_name="gh_string" type_code="10">B</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">B</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">5066ea7d-0885-40ef-ba08-0e26c33247da</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>303</X>
+                                  <Y>-5319</Y>
+                                  <W>14</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>311.5</X>
+                                  <Y>-5309</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="OutputParam" index="0">
+                          <items count="6">
+                            <item name="Description" type_name="gh_string" type_code="10">Result of multiplication</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">5384f7a4-eafb-4feb-883d-3bcc8cd83215</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Result</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Result</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>347</X>
+                                  <Y>-5339</Y>
+                                  <W>34</W>
+                                  <H>40</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>365.5</X>
+                                  <Y>-5319</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="84">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">b6236720-8d88-4289-93c3-ac4c99f9b97b</item>
+                <item name="Name" type_name="gh_string" type_code="10">Relay</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="8">
+                    <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                    <item name="Description" type_name="gh_string" type_code="10">A wire relay object</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">fd8bd28b-a563-46fc-b271-ca8424e2facb</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Relay</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"></item>
+                    <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                    <item name="Source" index="0" type_name="gh_guid" type_code="9">fe7076f0-6b08-477b-ba14-e24d0686a99d</item>
+                    <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                  </items>
+                  <chunks count="1">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>322</X>
+                          <Y>-5276</Y>
+                          <W>40</W>
+                          <H>16</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>342</X>
+                          <Y>-5268</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="85">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">33bcf975-a0b2-4b54-99fd-585c893b9e88</item>
+                <item name="Name" type_name="gh_string" type_code="10">Digit Scroller</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="6">
+                    <item name="Description" type_name="gh_string" type_code="10">Numeric scroller for single numbers</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">801c2d58-0c8e-4ef9-a87a-addb6430228a</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Digit Scroller</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"> </item>
+                    <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                    <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                  </items>
+                  <chunks count="2">
+                    <chunk name="Scroller">
+                      <items count="5">
+                        <item name="Digits" type_name="gh_int32" type_code="3">12</item>
+                        <item name="Prefix" type_name="gh_string" type_code="10"> </item>
+                        <item name="Radix" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Suffix" type_name="gh_string" type_code="10"></item>
+                        <item name="Value" type_name="gh_decimal" type_code="7">0.03125000000</item>
+                      </items>
+                    </chunk>
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>219</X>
+                          <Y>-5368</Y>
+                          <W>250</W>
+                          <H>20</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>219.9621</X>
+                          <Y>-5367.193</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="86">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">c552a431-af5b-46a9-a8a4-0fcbc27ef596</item>
+                <item name="Name" type_name="gh_string" type_code="10">Group</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="14">
+                    <item name="Border" type_name="gh_int32" type_code="3">1</item>
+                    <item name="Colour" type_name="gh_drawing_color" type_code="36">
+                      <ARGB>255;255;255;255</ARGB>
+                    </item>
+                    <item name="Description" type_name="gh_string" type_code="10">A group of Grasshopper objects</item>
+                    <item name="ID" index="0" type_name="gh_guid" type_code="9">4bed0c79-eafe-44a1-9d85-14b3b5ec97c8</item>
+                    <item name="ID" index="1" type_name="gh_guid" type_code="9">2ccab08a-bf04-4c3d-9716-a753d82a03cd</item>
+                    <item name="ID" index="2" type_name="gh_guid" type_code="9">7b6a2fb6-de88-429e-b5ce-bc95295aee42</item>
+                    <item name="ID" index="3" type_name="gh_guid" type_code="9">3526fdbb-61f6-43cc-9429-e4e095d93c55</item>
+                    <item name="ID" index="4" type_name="gh_guid" type_code="9">84d41a65-8d6a-4672-9104-40d8383ae1b7</item>
+                    <item name="ID" index="5" type_name="gh_guid" type_code="9">fd8bd28b-a563-46fc-b271-ca8424e2facb</item>
+                    <item name="ID" index="6" type_name="gh_guid" type_code="9">801c2d58-0c8e-4ef9-a87a-addb6430228a</item>
+                    <item name="ID_Count" type_name="gh_int32" type_code="3">7</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">dfa7cf71-20ac-49f9-b5dd-b2947d015437</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Group</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"></item>
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+                  </chunks>
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+                <item name="Name" type_name="gh_string" type_code="10">Group</item>
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+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="11">
+                    <item name="Border" type_name="gh_int32" type_code="3">1</item>
+                    <item name="Colour" type_name="gh_drawing_color" type_code="36">
+                      <ARGB>255;255;255;255</ARGB>
+                    </item>
+                    <item name="Description" type_name="gh_string" type_code="10">A group of Grasshopper objects</item>
+                    <item name="ID" index="0" type_name="gh_guid" type_code="9">1235c4c9-8f5f-4d89-9d7f-809970b11602</item>
+                    <item name="ID" index="1" type_name="gh_guid" type_code="9">31bba6de-e61e-4c51-aee7-ce9783e01938</item>
+                    <item name="ID" index="2" type_name="gh_guid" type_code="9">e6747a0a-ed73-4547-9818-4adc1fde206b</item>
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+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">7c5383a5-e9de-45c7-841d-ce818bf974b1</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Group</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"></item>
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+                  </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">9df5e896-552d-4c8c-b9ca-4fc147ffa022</item>
+                <item name="Name" type_name="gh_string" type_code="10">Expression</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="7">
+                    <item name="Description" type_name="gh_string" type_code="10">Evaluate an expression</item>
+                    <item name="Expression" type_name="gh_string" type_code="10">FORMAT("{0:R}",O)</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">c56e3504-6a64-4795-9c0c-3479bc802005</item>
+                    <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Expression</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Expression</item>
+                  </items>
+                  <chunks count="2">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>245</X>
+                          <Y>-4606</Y>
+                          <W>194</W>
+                          <H>28</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>345</X>
+                          <Y>-4592</Y>
+                        </item>
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+                      <items count="4">
+                        <item name="InputCount" type_name="gh_int32" type_code="3">1</item>
+                        <item name="InputId" index="0" type_name="gh_guid" type_code="9">ba80fd98-91a1-4958-b6a7-a94e40e52bdb</item>
+                        <item name="OutputCount" type_name="gh_int32" type_code="3">1</item>
+                        <item name="OutputId" index="0" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="InputParam" index="0">
+                          <items count="8">
+                            <item name="Description" type_name="gh_string" type_code="10">Expression variable</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">658cd5bc-b3d3-4f5c-89e5-9d36fe1c3a7f</item>
+                            <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Variable O</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">O</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">106043df-2b8f-4807-96f9-092a1890ab46</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>247</X>
+                                  <Y>-4604</Y>
+                                  <W>14</W>
+                                  <H>24</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>255.5</X>
+                                  <Y>-4592</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="OutputParam" index="0">
+                          <items count="7">
+                            <item name="Description" type_name="gh_string" type_code="10">Result of expression</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">0009d767-0973-4418-9eb3-0d0e9fe3172c</item>
+                            <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Result</item>
+                            <item name="NickName" type_name="gh_string" type_code="10"> </item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>428</X>
+                                  <Y>-4604</Y>
+                                  <W>9</W>
+                                  <H>24</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>434</X>
+                                  <Y>-4592</Y>
+                                </item>
+                              </items>
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+                          </chunks>
+                        </chunk>
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+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">59e0b89a-e487-49f8-bab8-b5bab16be14c</item>
+                <item name="Name" type_name="gh_string" type_code="10">Panel</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="9">
+                    <item name="Description" type_name="gh_string" type_code="10">A panel for custom notes and text values</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">a7eafc6f-e9ef-4560-9224-6456d0194977</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Panel</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"></item>
+                    <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                    <item name="ScrollRatio" type_name="gh_double" type_code="6">1</item>
+                    <item name="Source" index="0" type_name="gh_guid" type_code="9">0009d767-0973-4418-9eb3-0d0e9fe3172c</item>
+                    <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                    <item name="UserText" type_name="gh_string" type_code="10">Double click to edit panel content…</item>
+                  </items>
+                  <chunks count="2">
+                    <chunk name="Attributes">
+                      <items count="5">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>252</X>
+                          <Y>-4885</Y>
+                          <W>185</W>
+                          <H>271</H>
+                        </item>
+                        <item name="MarginLeft" type_name="gh_int32" type_code="3">0</item>
+                        <item name="MarginRight" type_name="gh_int32" type_code="3">0</item>
+                        <item name="MarginTop" type_name="gh_int32" type_code="3">0</item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>252.2971</X>
+                          <Y>-4884.8</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="PanelProperties">
+                      <items count="7">
+                        <item name="Colour" type_name="gh_drawing_color" type_code="36">
+                          <ARGB>255;255;255;255</ARGB>
+                        </item>
+                        <item name="DrawIndices" type_name="gh_bool" type_code="1">true</item>
+                        <item name="DrawPaths" type_name="gh_bool" type_code="1">true</item>
+                        <item name="Multiline" type_name="gh_bool" type_code="1">true</item>
+                        <item name="SpecialCodes" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Stream" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Wrap" type_name="gh_bool" type_code="1">true</item>
+                      </items>
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+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">b6236720-8d88-4289-93c3-ac4c99f9b97b</item>
+                <item name="Name" type_name="gh_string" type_code="10">Relay</item>
+              </items>
+              <chunks count="1">
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+                  <items count="8">
+                    <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                    <item name="Description" type_name="gh_string" type_code="10">A wire relay object</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">4fc52e93-3ecd-4f57-9fd2-8e926602ed0d</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Relay</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"> </item>
+                    <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                    <item name="Source" index="0" type_name="gh_guid" type_code="9">a7eafc6f-e9ef-4560-9224-6456d0194977</item>
+                    <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>322</X>
+                          <Y>-4915</Y>
+                          <W>40</W>
+                          <H>16</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>342</X>
+                          <Y>-4907</Y>
+                        </item>
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+                <item name="Name" type_name="gh_string" type_code="10">Relay</item>
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+                    <item name="NickName" type_name="gh_string" type_code="10">Create Material</item>
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+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">16b3dab9-316e-4084-85bd-1aefc12ce7fd</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Diffuse</item>
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+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Colour of the specular highlight</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Specular</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Emission</item>
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+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">6e5af18f-9d61-44e0-96e7-a05f43eb7420</item>
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+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">3008c6e8-6802-4f88-bb2c-a3a14a23ebbd</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
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+                <item name="Name" type_name="gh_string" type_code="10">Custom Preview</item>
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+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">24f95085-09f9-43f6-8f6e-9aec43bf9508</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
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+                                      <ARGB>255;221;160;221</ARGB>
+                                    </item>
+                                    <item name="emission" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;66;48;66</ARGB>
+                                    </item>
+                                    <item name="shine" type_name="gh_double" type_code="6">0.5</item>
+                                    <item name="specular" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;255;255;255</ARGB>
+                                    </item>
+                                    <item name="transparency" type_name="gh_double" type_code="6">0</item>
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+                    <item name="Name" type_name="gh_string" type_code="10">Group</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"></item>
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+                <item name="Name" type_name="gh_string" type_code="10">Explode</item>
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+                    <item name="Description" type_name="gh_string" type_code="10">Explode a curve into smaller segments.</item>
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+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">62c602d2-77cd-4f0d-bb18-5acede9a4070</item>
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+                    <item name="NickName" type_name="gh_string" type_code="10">Explode</item>
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+                    <chunk name="Attributes">
+                      <items count="2">
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+                          <X>274</X>
+                          <Y>-6459</Y>
+                          <W>136</W>
+                          <H>44</H>
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+                          <X>341</X>
+                          <Y>-6437</Y>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve to explode</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
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+                              <X>276</X>
+                              <Y>-6457</Y>
+                              <W>50</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302.5</X>
+                              <Y>-6447</Y>
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+                    <chunk name="param_input" index="1">
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+                        <item name="Description" type_name="gh_string" type_code="10">Recursive decomposition until all segments are atomic</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">c4cda850-3104-4e28-8d04-678e7c0eca40</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Recursive</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Recursive</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>276</X>
+                              <Y>-6437</Y>
+                              <W>50</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302.5</X>
+                              <Y>-6427</Y>
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+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
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+                              <chunks count="1">
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Exploded segments that make up the base curve</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">98212edd-af62-44dc-a89d-1ae9be71093e</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Segments</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Segments</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>356</X>
+                              <Y>-6457</Y>
+                              <W>52</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>383.5</X>
+                              <Y>-6447</Y>
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+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Vertices</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Vertices</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                        <chunk name="Attributes">
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+                              <X>356</X>
+                              <Y>-6437</Y>
+                              <W>52</W>
+                              <H>20</H>
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+                              <X>383.5</X>
+                              <Y>-6427</Y>
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+                <item name="Name" type_name="gh_string" type_code="10">Evaluate Length</item>
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+                    <item name="Description" type_name="gh_string" type_code="10">Evaluate a curve at a certain factor along its length. Length factors can be supplied both in curve units and normalized units. Change the [N] parameter to toggle between the two modes.</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
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+                    <item name="NickName" type_name="gh_string" type_code="10">Evaluate Length</item>
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+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>270</X>
+                          <Y>-6542</Y>
+                          <W>144</W>
+                          <H>64</H>
+                        </item>
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+                          <X>344</X>
+                          <Y>-6510</Y>
+                        </item>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve to evaluate</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">92f88431-f806-4888-9919-5b34b1ff832d</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">98212edd-af62-44dc-a89d-1ae9be71093e</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-6540</Y>
+                              <W>57</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302</X>
+                              <Y>-6530</Y>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Length factor for curve evaluation</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">bdc20563-1118-497e-9550-e6634a6157bd</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-6520</Y>
+                              <W>57</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302</X>
+                              <Y>-6510</Y>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">0.5</item>
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+                    <chunk name="param_input" index="2">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">If True, the Length factor is normalized (0.0 ~ 1.0)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">1244b715-8fdd-441a-8f82-6609edeaf970</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Normalized</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Normalized</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-6500</Y>
+                              <W>57</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302</X>
+                              <Y>-6490</Y>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
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+                          <chunks count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
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+                                <chunk name="Item" index="0">
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+                                    <item name="boolean" type_name="gh_bool" type_code="1">true</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Point at the specified length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">591a1932-c0e6-43ca-9733-d42b91a20bb2</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Point</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>359</X>
+                              <Y>-6540</Y>
+                              <W>53</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>387</X>
+                              <Y>-6530</Y>
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+                    <chunk name="param_output" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Tangent vector at the specified length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">187a2498-c34c-4f57-bd87-0d5f7ffa911e</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Tangent</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Tangent</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>359</X>
+                              <Y>-6520</Y>
+                              <W>53</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>387</X>
+                              <Y>-6510</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve parameter at the specified length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">de0316b6-3631-4664-92e0-dd1e45a8520d</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Parameter</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Parameter</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>359</X>
+                              <Y>-6500</Y>
+                              <W>53</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>387</X>
+                              <Y>-6490</Y>
+                            </item>
+                          </items>
+                        </chunk>
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+                  </chunks>
+                </chunk>
+              </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">4c619bc9-39fd-4717-82a6-1e07ea237bbe</item>
+                <item name="Name" type_name="gh_string" type_code="10">Line SDL</item>
+              </items>
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+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Create a line segment defined by start point, tangent and length.}</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">63010fd8-eb13-4ec9-b22e-d5be2c20a9cb</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Line SDL</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Line SDL</item>
+                  </items>
+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>281</X>
+                          <Y>-8175</Y>
+                          <W>122</W>
+                          <H>64</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>361</X>
+                          <Y>-8143</Y>
+                        </item>
+                      </items>
+                    </chunk>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Line start point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">5e18ed32-a156-4fa4-b13b-19fac8e7a728</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">591a1932-c0e6-43ca-9733-d42b91a20bb2</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>283</X>
+                              <Y>-8173</Y>
+                              <W>63</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
+                              <Y>-8163</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Line tangent (direction)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">80b7924a-4677-4800-ae3b-bba84e95b67b</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Direction</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Direction</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">de0c9fd3-7271-4958-a1cb-2044f8fc3ae4</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>283</X>
+                              <Y>-8153</Y>
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+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
+                              <Y>-8143</Y>
+                            </item>
+                          </items>
+                        </chunk>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="vector" type_name="gh_point3d" type_code="51">
+                                      <X>0</X>
+                                      <Y>0</Y>
+                                      <Z>1</Z>
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+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="2">
+                      <items count="8">
+                        <item name="Description" type_name="gh_string" type_code="10">Line length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">1ef3006d-83dc-4f79-af64-9b8e572f35a6</item>
+                        <item name="InternalExpression" type_name="gh_string" type_code="10">ABS(X)</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">e46b0d78-a2aa-4739-b44d-eb989984ca91</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>283</X>
+                              <Y>-8133</Y>
+                              <W>63</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
+                              <Y>-8123</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">0.015625</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Line segment</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">130844eb-08a9-45a2-9df0-4f040bb617dc</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Line</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Line</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>376</X>
+                              <Y>-8173</Y>
+                              <W>25</W>
+                              <H>60</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>390</X>
+                              <Y>-8143</Y>
+                            </item>
+                          </items>
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+                      </chunks>
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+                  </chunks>
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+              </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">dd17d442-3776-40b3-ad5b-5e188b56bd4c</item>
+                <item name="Name" type_name="gh_string" type_code="10">Relative Differences</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Compute relative differences for a list of data</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">d8234047-e5ed-4bdd-b16f-b853221dfd74</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Relative Differences</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Relative Differences</item>
+                  </items>
+                  <chunks count="3">
+                    <chunk name="Attributes">
+                      <items count="2">
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+                          <X>278</X>
+                          <Y>-6885</Y>
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+                          <X>331</X>
+                          <Y>-6871</Y>
+                        </item>
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+                      <items count="8">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">List of data to operate on (numbers or points or vectors allowed)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ec70ec89-a9aa-47ac-ac4c-b6819f665815</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Values</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Values</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">5883660c-9e3f-4a8e-88e3-1e3fe44f6088</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>280</X>
+                              <Y>-6883</Y>
+                              <W>36</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>299.5</X>
+                              <Y>-6871</Y>
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+                          </items>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Differences between consecutive items</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">f973f482-820d-4d0a-abb0-0e45fd61dd4f</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Differenced</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Differenced</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>346</X>
+                              <Y>-6883</Y>
+                              <W>58</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>376.5</X>
+                              <Y>-6871</Y>
+                            </item>
+                          </items>
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+                <item name="GUID" type_name="gh_guid" type_code="9">f3230ecb-3631-4d6f-86f2-ef4b2ed37f45</item>
+                <item name="Name" type_name="gh_string" type_code="10">Replace Nulls</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="5">
+                    <item name="Description" type_name="gh_string" type_code="10">Replace nulls or invalid data with other data</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">dac11d4e-526b-494b-b15d-b1947abc1edb</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Replace Nulls</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Replace Nulls</item>
+                  </items>
+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>274</X>
+                          <Y>-6829</Y>
+                          <W>136</W>
+                          <H>44</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>360</X>
+                          <Y>-6807</Y>
+                        </item>
+                      </items>
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+                      <items count="8">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Items to test for null</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">bf97c8b2-fa07-428f-988d-5eec590f0725</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Items</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Items</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">e59cae2d-e927-48aa-bcc2-d37dc07bb78a</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>276</X>
+                              <Y>-6827</Y>
+                              <W>69</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>312</X>
+                              <Y>-6817</Y>
+                            </item>
+                          </items>
+                        </chunk>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Items to replace nulls with</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">18480e2c-cf0b-40e2-8a64-81312da65a71</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Replacements</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Replacements</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>276</X>
+                              <Y>-6807</Y>
+                              <W>69</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>312</X>
+                              <Y>-6797</Y>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="2">
+                                    <item name="TypeName" type_name="gh_string" type_code="10">Grasshopper.Kernel.Types.GH_Integer</item>
+                                    <item name="number" type_name="gh_int32" type_code="3">0</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
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+                          </chunks>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">List without any nulls</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">5883660c-9e3f-4a8e-88e3-1e3fe44f6088</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Items</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Items</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>375</X>
+                              <Y>-6827</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>393</X>
+                              <Y>-6817</Y>
+                            </item>
+                          </items>
+                        </chunk>
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+                    <chunk name="param_output" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Number of items replaced</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">2581cb82-20f8-477e-b3bf-a1642f64eb09</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Count</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Count</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>375</X>
+                              <Y>-6807</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>393</X>
+                              <Y>-6797</Y>
+                            </item>
+                          </items>
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+                <item name="Name" type_name="gh_string" type_code="10">List Length</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Measure the length of a list.</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">11969dad-3d43-41a3-89f5-57bf4950c029</item>
+                    <item name="Name" type_name="gh_string" type_code="10">List Length</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">List Length</item>
+                  </items>
+                  <chunks count="3">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>296</X>
+                          <Y>-6934</Y>
+                          <W>93</W>
+                          <H>28</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>335</X>
+                          <Y>-6920</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="param_input" index="0">
+                      <items count="8">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Base list</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">4638b2a5-0852-4778-9dfa-c6d212022d9f</item>
+                        <item name="Name" type_name="gh_string" type_code="10">List</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">List</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">f973f482-820d-4d0a-abb0-0e45fd61dd4f</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>298</X>
+                              <Y>-6932</Y>
+                              <W>22</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>310.5</X>
+                              <Y>-6920</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Number of items in L</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">719bc471-8739-4733-9e48-4d70249b12f9</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>350</X>
+                              <Y>-6932</Y>
+                              <W>37</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>370</X>
+                              <Y>-6920</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="107">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">59daf374-bc21-4a5e-8282-5504fb7ae9ae</item>
+                <item name="Name" type_name="gh_string" type_code="10">List Item</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="5">
+                    <item name="BaseOutputIndex" type_name="gh_int32" type_code="3">0</item>
+                    <item name="Description" type_name="gh_string" type_code="10">Retrieve a specific item from a list.</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">a804cb48-155a-42af-ad8c-1c6e2a19e304</item>
+                    <item name="Name" type_name="gh_string" type_code="10">List Item</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">List Item</item>
+                  </items>
+                  <chunks count="2">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>305</X>
+                          <Y>-7097</Y>
+                          <W>74</W>
+                          <H>64</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>353</X>
+                          <Y>-7065</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="ParameterData">
+                      <items count="6">
+                        <item name="InputCount" type_name="gh_int32" type_code="3">3</item>
+                        <item name="InputId" index="0" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                        <item name="InputId" index="1" type_name="gh_guid" type_code="9">2e3ab970-8545-46bb-836c-1c11e5610bce</item>
+                        <item name="InputId" index="2" type_name="gh_guid" type_code="9">cb95db89-6165-43b6-9c41-5702bc5bf137</item>
+                        <item name="OutputCount" type_name="gh_int32" type_code="3">1</item>
+                        <item name="OutputId" index="0" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                      </items>
+                      <chunks count="4">
+                        <chunk name="InputParam" index="0">
+                          <items count="8">
+                            <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Base list</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">23a110ce-8527-423f-a609-7e7a1a444411</item>
+                            <item name="Name" type_name="gh_string" type_code="10">List</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">List</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">f973f482-820d-4d0a-abb0-0e45fd61dd4f</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>307</X>
+                                  <Y>-7095</Y>
+                                  <W>31</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>324</X>
+                                  <Y>-7085</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="1">
+                          <items count="7">
+                            <item name="Description" type_name="gh_string" type_code="10">Item index</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">df24c556-eaaf-401d-9e20-02977fda7ac0</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Index</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Index</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">0a706dac-b7dd-482a-93bc-aa50c370312f</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="2">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>307</X>
+                                  <Y>-7075</Y>
+                                  <W>31</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>324</X>
+                                  <Y>-7065</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                            <chunk name="PersistentData">
+                              <items count="1">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Branch" index="0">
+                                  <items count="2">
+                                    <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                    <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                                  </items>
+                                  <chunks count="1">
+                                    <chunk name="Item" index="0">
+                                      <items count="1">
+                                        <item name="number" type_name="gh_int32" type_code="3">0</item>
+                                      </items>
+                                    </chunk>
+                                  </chunks>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="2">
+                          <items count="6">
+                            <item name="Description" type_name="gh_string" type_code="10">Wrap index to list bounds</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">6319081b-e54b-43dc-82fb-f0e5b97dcc9c</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Wrap</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Wrap</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                          </items>
+                          <chunks count="2">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>307</X>
+                                  <Y>-7055</Y>
+                                  <W>31</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>324</X>
+                                  <Y>-7045</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                            <chunk name="PersistentData">
+                              <items count="1">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Branch" index="0">
+                                  <items count="2">
+                                    <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                    <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                                  </items>
+                                  <chunks count="1">
+                                    <chunk name="Item" index="0">
+                                      <items count="1">
+                                        <item name="boolean" type_name="gh_bool" type_code="1">false</item>
+                                      </items>
+                                    </chunk>
+                                  </chunks>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="OutputParam" index="0">
+                          <items count="7">
+                            <item name="Description" type_name="gh_string" type_code="10">Item at {i'}</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">a1524e16-689f-4baa-b947-2e9fb80c5f64</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Item</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">i</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>368</X>
+                                  <Y>-7095</Y>
+                                  <W>9</W>
+                                  <H>60</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>374</X>
+                                  <Y>-7065</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
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+                </chunk>
+              </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">e64c5fb1-845c-4ab1-8911-5f338516ba67</item>
+                <item name="Name" type_name="gh_string" type_code="10">Series</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Create a series of numbers.</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">bbc9a3b9-9f2b-4ca9-a252-97745cc0f3f6</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Series</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Series</item>
+                  </items>
+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>284</X>
+                          <Y>-7015</Y>
+                          <W>117</W>
+                          <H>64</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>350</X>
+                          <Y>-6983</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="param_input" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">First number in the series</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">51bf7af4-f963-44ff-836a-6de40ca98f79</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>286</X>
+                              <Y>-7013</Y>
+                              <W>49</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>320</X>
+                              <Y>-7003</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">1</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Step size for each successive number</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">379f2480-c1f4-4a91-a55f-430a81d125a7</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Step</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Step</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>286</X>
+                              <Y>-6993</Y>
+                              <W>49</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>320</X>
+                              <Y>-6983</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">1</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="2">
+                      <items count="8">
+                        <item name="Description" type_name="gh_string" type_code="10">Number of values in the series</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">4584ffcd-1980-498a-bae6-104e5d24cf22</item>
+                        <item name="InternalExpression" type_name="gh_string" type_code="10">X-1</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Count</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Count</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">719bc471-8739-4733-9e48-4d70249b12f9</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>286</X>
+                              <Y>-6973</Y>
+                              <W>49</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>320</X>
+                              <Y>-6963</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_int32" type_code="3">10</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Series of numbers</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">0a706dac-b7dd-482a-93bc-aa50c370312f</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Series</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Series</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>365</X>
+                              <Y>-7013</Y>
+                              <W>34</W>
+                              <H>60</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>383.5</X>
+                              <Y>-6983</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
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+                  </chunks>
+                </chunk>
+              </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">b6236720-8d88-4289-93c3-ac4c99f9b97b</item>
+                <item name="Name" type_name="gh_string" type_code="10">Relay</item>
+              </items>
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+                          <W>40</W>
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+                    <item name="Description" type_name="gh_string" type_code="10">A wire relay object</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">26dea40c-e669-45c9-8b22-0d8c9287b0cc</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Relay</item>
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+                          <X>322</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Curve Closest Point</item>
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+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">fb0c4290-5fc3-4c8a-bd75-2664c6024918</item>
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+                    <item name="NickName" type_name="gh_string" type_code="10">Curve Closest Point</item>
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+                          <X>282</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Point to project onto curve</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">dc2d19a4-95c8-4d35-bd12-7db819193643</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Point</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve to project onto</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
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+                              <X>284</X>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Point on the curve closest to the base point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ad48b807-d3bb-4bdf-953f-86d26927f300</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
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+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <chunk name="Attributes">
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+                              <X>347</X>
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+                              <X>375</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Parameter on curve domain of closest point</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Parameter</item>
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+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>347</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Distance between base point and curve</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">4b17b640-9071-4543-be63-653853c3440a</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Distance</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Distance</item>
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+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>347</X>
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+                              <X>375</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Line</item>
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+                    <item name="Description" type_name="gh_string" type_code="10">Create a line between two points.</item>
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+                          <X>285</X>
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+                          <X>357</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Line start point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">550119e3-62af-448f-98f8-c0a02130038d</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start Point</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">ad48b807-d3bb-4bdf-953f-86d26927f300</item>
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+                              <X>287</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Line end point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">b37db734-b282-4fd4-973e-64f6ad94eea4</item>
+                        <item name="Name" type_name="gh_string" type_code="10">End Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">End Point</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">591a1932-c0e6-43ca-9733-d42b91a20bb2</item>
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+                              <X>287</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Line segment</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">de0c9fd3-7271-4958-a1cb-2044f8fc3ae4</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Line</item>
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+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>372</X>
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+                              <X>386</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Remap Numbers</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
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+                    <item name="Description" type_name="gh_string" type_code="10">Remap numbers into a new numeric domain</item>
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+                    <item name="Name" type_name="gh_string" type_code="10">Remap Numbers</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Remap Numbers</item>
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+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>285</X>
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+                          <X>340</X>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Value to remap</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ed7f4811-c1f2-4d0d-99bc-1bed82103c9b</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Value</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Value</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">d386c9ed-f4c7-48bf-ba31-0b0ce3b9b519</item>
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+                          <items count="2">
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+                              <X>287</X>
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+                              <X>307.5</X>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Source domain</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">e57daf77-2b13-4f25-8972-2a77731d10a1</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Source</item>
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+                            <item name="Name" type_name="gh_string" type_code="10">B</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">B</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
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+                                  <X>311.5</X>
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+                            <item name="Name" type_name="gh_string" type_code="10">Result</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Result</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                          <chunks count="1">
+                            <chunk name="Attributes">
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+                                  <X>347</X>
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+                                  <X>365.5</X>
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+                    <item name="Name" type_name="gh_string" type_code="10">Relay</item>
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+                          <X>322</X>
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+                          <X>342</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Digit Scroller</item>
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+                    <item name="Description" type_name="gh_string" type_code="10">Numeric scroller for single numbers</item>
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+                    <item name="NickName" type_name="gh_string" type_code="10"> </item>
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+                    <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                    <chunk name="Scroller">
+                      <items count="5">
+                        <item name="Digits" type_name="gh_int32" type_code="3">12</item>
+                        <item name="Prefix" type_name="gh_string" type_code="10"> </item>
+                        <item name="Radix" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Suffix" type_name="gh_string" type_code="10"></item>
+                        <item name="Value" type_name="gh_decimal" type_code="7">0.03125000000</item>
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+                          <X>219</X>
+                          <Y>-7988</Y>
+                          <W>250</W>
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+                          <X>219.5915</X>
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+                            <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Variable O</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">O</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">true</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">45c549e0-68c2-4f37-a21e-dd01e8b91ce9</item>
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+                                  <X>255.5</X>
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+                            <item name="Locked" type_name="gh_bool" type_code="1">true</item>
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+                            <item name="NickName" type_name="gh_string" type_code="10"> </item>
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+                    <item name="Description" type_name="gh_string" type_code="10">A panel for custom notes and text values</item>
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+                    <item name="UserText" type_name="gh_string" type_code="10">Double click to edit panel content…</item>
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+                          <X>251</X>
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+                          <X>251.9265</X>
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+                        <item name="Colour" type_name="gh_drawing_color" type_code="36">
+                          <ARGB>255;255;255;255</ARGB>
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+                        <item name="DrawIndices" type_name="gh_bool" type_code="1">true</item>
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+                        <item name="Multiline" type_name="gh_bool" type_code="1">true</item>
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+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">6a28cf0d-207d-4137-8be7-8f10edfa7765</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
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+                                      <ARGB>255;221;160;221</ARGB>
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+                                    <item name="emission" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;66;48;66</ARGB>
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+                                    <item name="specular" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;255;255;255</ARGB>
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+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Tangent</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve parameter at the specified length</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Parameter</item>
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+                          <X>347</X>
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+                        <item name="Name" type_name="gh_string" type_code="10">Vertices</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Vertices</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve degree</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">3547cf4d-abd2-4e7d-8e66-eb51ebbcd119</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Degree</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Degree</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Periodic curve</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Periodic</item>
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+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>282</X>
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+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">50ead30d-6ee3-4b32-81d6-d846bdcf101c</item>
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+                        <item name="NickName" type_name="gh_string" type_code="10">KnotStyle</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Resulting nurbs curve</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
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+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                              <X>362</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve length</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
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+                              <X>362</X>
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+                              <X>384</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve domain</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">744d7b8f-37c6-4ead-8301-a929f8816367</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Domain</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Domain</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                              <X>362</X>
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+                              <X>384</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Create Material</item>
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+                    <item name="Name" type_name="gh_string" type_code="10">Create Material</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Create Material</item>
+                  </items>
+                  <chunks count="7">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>270</X>
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+                          <X>354</X>
+                          <Y>-8640</Y>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Colour of the diffuse channel</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">a7467e5e-2665-4ce2-8c43-cfaa15f87919</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Diffuse</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Diffuse</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                      <chunks count="2">
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+                              <X>307</X>
+                              <Y>-8680</Y>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
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+                          <chunks count="1">
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+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="color" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;207;207;207</ARGB>
+                                    </item>
+                                  </items>
+                                </chunk>
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+                      </chunks>
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+                        <item name="Description" type_name="gh_string" type_code="10">Colour of the specular highlight</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">746b6510-fee5-470d-9c3e-cab16cb92af0</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Specular</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Specular</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                                    <item name="color" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;0;255;255</ARGB>
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+                        <item name="Description" type_name="gh_string" type_code="10">Emissive colour of the material</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">0968a3e7-6ae2-4255-8d1a-b7f90a6e151b</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Emission</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Emission</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>272</X>
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+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="color" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;0;0;0</ARGB>
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+                        <item name="Description" type_name="gh_string" type_code="10">Amount of transparency (0.0 = opaque, 1.0 = transparent</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">81c5e772-f872-490e-be73-edd2a2483188</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Transparency</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Transparency</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                                    <item name="number" type_name="gh_double" type_code="6">0.5</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Amount of shinyness (0 = none, 1 = low shine, 100 = max shine</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">7b3c55ca-8b0a-4716-95d3-10737b6dcaf8</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Shine</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Shine</item>
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+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
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+                              <X>330</X>
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+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ff475b2c-418f-4b6e-82ef-442babb69992</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
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+                                      <ARGB>255;221;160;221</ARGB>
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+                                      <ARGB>255;66;48;66</ARGB>
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+                                    <item name="transparency" type_name="gh_double" type_code="6">0</item>
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+                    <item name="Name" type_name="gh_string" type_code="10">Group</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"></item>
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+                <item name="Name" type_name="gh_string" type_code="10">Explode</item>
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+                    <item name="Description" type_name="gh_string" type_code="10">Explode a curve into smaller segments.</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">f878aff3-042d-4445-841a-996f7e3c4437</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Explode</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Explode</item>
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+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>274</X>
+                          <Y>-8943</Y>
+                          <W>136</W>
+                          <H>44</H>
+                        </item>
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+                          <X>341</X>
+                          <Y>-8921</Y>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve to explode</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">580d0266-19ac-48f2-896a-ad2df18b2fc2</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>276</X>
+                              <Y>-8941</Y>
+                              <W>50</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302.5</X>
+                              <Y>-8931</Y>
+                            </item>
+                          </items>
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+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Recursive decomposition until all segments are atomic</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">0aad0af5-7ee5-4c45-a214-0b2af34b395d</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Recursive</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Recursive</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>276</X>
+                              <Y>-8921</Y>
+                              <W>50</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302.5</X>
+                              <Y>-8911</Y>
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+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
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+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="boolean" type_name="gh_bool" type_code="1">true</item>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Exploded segments that make up the base curve</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">745c1976-0886-47b5-933e-966ed0fd51cd</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Segments</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Segments</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>356</X>
+                              <Y>-8941</Y>
+                              <W>52</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>383.5</X>
+                              <Y>-8931</Y>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Vertices of the exploded segments</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">da55c94f-e2d2-4f45-b8eb-eca5799e111d</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Vertices</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Vertices</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>356</X>
+                              <Y>-8921</Y>
+                              <W>52</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>383.5</X>
+                              <Y>-8911</Y>
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+                <item name="Name" type_name="gh_string" type_code="10">Evaluate Length</item>
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+              <chunks count="1">
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+                  <items count="5">
+                    <item name="Description" type_name="gh_string" type_code="10">Evaluate a curve at a certain factor along its length. Length factors can be supplied both in curve units and normalized units. Change the [N] parameter to toggle between the two modes.</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
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+                    <item name="Name" type_name="gh_string" type_code="10">Evaluate Length</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Evaluate Length</item>
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+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>270</X>
+                          <Y>-9026</Y>
+                          <W>144</W>
+                          <H>64</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>344</X>
+                          <Y>-8994</Y>
+                        </item>
+                      </items>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve to evaluate</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">d63d3202-5253-4bde-8a63-ce327450ba5a</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">745c1976-0886-47b5-933e-966ed0fd51cd</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-9024</Y>
+                              <W>57</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302</X>
+                              <Y>-9014</Y>
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+                    <chunk name="param_input" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Length factor for curve evaluation</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">727ed2ba-c068-4b1b-89ab-406993654c6c</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-9004</Y>
+                              <W>57</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302</X>
+                              <Y>-8994</Y>
+                            </item>
+                          </items>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">0.5</item>
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+                              </chunks>
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+                    <chunk name="param_input" index="2">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">If True, the Length factor is normalized (0.0 ~ 1.0)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">98c60b7f-0fee-4bde-ac4e-c48240c44f3e</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Normalized</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Normalized</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-8984</Y>
+                              <W>57</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302</X>
+                              <Y>-8974</Y>
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+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="boolean" type_name="gh_bool" type_code="1">true</item>
+                                  </items>
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+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Point at the specified length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">a43630ab-156a-426f-acc4-3d7a60844ba0</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Point</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>359</X>
+                              <Y>-9024</Y>
+                              <W>53</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>387</X>
+                              <Y>-9014</Y>
+                            </item>
+                          </items>
+                        </chunk>
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+                    <chunk name="param_output" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Tangent vector at the specified length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">99ea9283-37b5-4015-902e-bdcb104b8545</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Tangent</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Tangent</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>359</X>
+                              <Y>-9004</Y>
+                              <W>53</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>387</X>
+                              <Y>-8994</Y>
+                            </item>
+                          </items>
+                        </chunk>
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+                    </chunk>
+                    <chunk name="param_output" index="2">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve parameter at the specified length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">b70e5d18-c387-4df7-a8ed-9a02f7306282</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Parameter</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Parameter</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>359</X>
+                              <Y>-8984</Y>
+                              <W>53</W>
+                              <H>20</H>
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+                              <X>387</X>
+                              <Y>-8974</Y>
+                            </item>
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+                <item name="Name" type_name="gh_string" type_code="10">Line SDL</item>
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+                    <item name="Description" type_name="gh_string" type_code="10">Create a line segment defined by start point, tangent and length.}</item>
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+                    <item name="Locked" type_name="gh_bool" type_code="1">true</item>
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+                    <item name="NickName" type_name="gh_string" type_code="10">Line SDL</item>
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+                    <chunk name="Attributes">
+                      <items count="2">
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+                          <X>281</X>
+                          <Y>-10659</Y>
+                          <W>122</W>
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+                          <X>361</X>
+                          <Y>-10627</Y>
+                        </item>
+                      </items>
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+                      <items count="8">
+                        <item name="Description" type_name="gh_string" type_code="10">Line start point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">c0b85885-f7c5-4210-a68b-c198b1e820d2</item>
+                        <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">a43630ab-156a-426f-acc4-3d7a60844ba0</item>
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+                        <chunk name="Attributes">
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+                              <X>283</X>
+                              <Y>-10657</Y>
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+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Line tangent (direction)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">67db1565-747e-4992-a835-3836078b80f9</item>
+                        <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Direction</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Direction</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">44d3c748-ae45-4e07-93fe-92ae80f51281</item>
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+                              <X>283</X>
+                              <Y>-10637</Y>
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+                              <X>324</X>
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+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
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+                    </chunk>
+                    <chunk name="param_input" index="2">
+                      <items count="9">
+                        <item name="Description" type_name="gh_string" type_code="10">Line length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">226a18d5-3f03-4676-9074-d0091d5262b3</item>
+                        <item name="InternalExpression" type_name="gh_string" type_code="10">ABS(X)</item>
+                        <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">f4dd4c1e-03c3-4bdf-bc94-1bde19cbcdfb</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>283</X>
+                              <Y>-10617</Y>
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+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
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+                                    <item name="number" type_name="gh_double" type_code="6">0.015625</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Line segment</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ca491e05-96af-4d8c-a7bf-ebc82d50f448</item>
+                        <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Line</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Line</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>376</X>
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+                              <X>390</X>
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+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">List of data to operate on (numbers or points or vectors allowed)</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Values</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Values</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">cfa91459-dc31-4d87-8d91-7f4c34c9cfce</item>
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+                              <X>280</X>
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+                              <X>299.5</X>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Differences between consecutive items</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Differenced</item>
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+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                              <X>376.5</X>
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+                    <item name="NickName" type_name="gh_string" type_code="10">Replace Nulls</item>
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+                          <X>360</X>
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+                        <item name="Name" type_name="gh_string" type_code="10">Items</item>
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+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">fe451803-8125-421a-8c61-dbea4f0f31ca</item>
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+                              <X>312</X>
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+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Items to replace nulls with</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Replacements</item>
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+                                    <item name="number" type_name="gh_int32" type_code="3">0</item>
+                                  </items>
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+                        <item name="Description" type_name="gh_string" type_code="10">List without any nulls</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Count</item>
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+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                          <Y>-9404</Y>
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+                      </items>
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+                      <items count="8">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Base list</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ff9eb267-02aa-473a-b778-e7cb3951fd5d</item>
+                        <item name="Name" type_name="gh_string" type_code="10">List</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">List</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">a088d561-4e71-444b-b093-747286e7569f</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>298</X>
+                              <Y>-9416</Y>
+                              <W>22</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>310.5</X>
+                              <Y>-9404</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Number of items in L</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">f3cd475a-cc21-4673-ac93-f4e7c4a41f3d</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>350</X>
+                              <Y>-9416</Y>
+                              <W>37</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>370</X>
+                              <Y>-9404</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">59daf374-bc21-4a5e-8282-5504fb7ae9ae</item>
+                <item name="Name" type_name="gh_string" type_code="10">List Item</item>
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+                  <items count="5">
+                    <item name="BaseOutputIndex" type_name="gh_int32" type_code="3">0</item>
+                    <item name="Description" type_name="gh_string" type_code="10">Retrieve a specific item from a list.</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">2b661462-b93c-4bed-8035-1c83804dd788</item>
+                    <item name="Name" type_name="gh_string" type_code="10">List Item</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">List Item</item>
+                  </items>
+                  <chunks count="2">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>305</X>
+                          <Y>-9581</Y>
+                          <W>74</W>
+                          <H>64</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>353</X>
+                          <Y>-9549</Y>
+                        </item>
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+                      <items count="6">
+                        <item name="InputCount" type_name="gh_int32" type_code="3">3</item>
+                        <item name="InputId" index="0" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                        <item name="InputId" index="1" type_name="gh_guid" type_code="9">2e3ab970-8545-46bb-836c-1c11e5610bce</item>
+                        <item name="InputId" index="2" type_name="gh_guid" type_code="9">cb95db89-6165-43b6-9c41-5702bc5bf137</item>
+                        <item name="OutputCount" type_name="gh_int32" type_code="3">1</item>
+                        <item name="OutputId" index="0" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
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+                          <items count="8">
+                            <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Base list</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">3aa62426-d67c-49e0-b7f0-f0ef4800e217</item>
+                            <item name="Name" type_name="gh_string" type_code="10">List</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">List</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">a088d561-4e71-444b-b093-747286e7569f</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>307</X>
+                                  <Y>-9579</Y>
+                                  <W>31</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>324</X>
+                                  <Y>-9569</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="1">
+                          <items count="7">
+                            <item name="Description" type_name="gh_string" type_code="10">Item index</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">30ca9584-4142-484a-8ba6-4325f8c95f03</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Index</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Index</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">b0446fc1-93df-4570-b804-5027ccac20d3</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="2">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>307</X>
+                                  <Y>-9559</Y>
+                                  <W>31</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>324</X>
+                                  <Y>-9549</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                            <chunk name="PersistentData">
+                              <items count="1">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Branch" index="0">
+                                  <items count="2">
+                                    <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                    <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                                  </items>
+                                  <chunks count="1">
+                                    <chunk name="Item" index="0">
+                                      <items count="1">
+                                        <item name="number" type_name="gh_int32" type_code="3">0</item>
+                                      </items>
+                                    </chunk>
+                                  </chunks>
+                                </chunk>
+                              </chunks>
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+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="2">
+                          <items count="6">
+                            <item name="Description" type_name="gh_string" type_code="10">Wrap index to list bounds</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">309cd5f4-7c1d-42e6-8672-1587c84dc6e3</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Wrap</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Wrap</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                          </items>
+                          <chunks count="2">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>307</X>
+                                  <Y>-9539</Y>
+                                  <W>31</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>324</X>
+                                  <Y>-9529</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                            <chunk name="PersistentData">
+                              <items count="1">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Branch" index="0">
+                                  <items count="2">
+                                    <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                    <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                                  </items>
+                                  <chunks count="1">
+                                    <chunk name="Item" index="0">
+                                      <items count="1">
+                                        <item name="boolean" type_name="gh_bool" type_code="1">false</item>
+                                      </items>
+                                    </chunk>
+                                  </chunks>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="OutputParam" index="0">
+                          <items count="7">
+                            <item name="Description" type_name="gh_string" type_code="10">Item at {i'}</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">81c77a90-b4ee-45b8-b76e-ac8421b2cae0</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Item</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">i</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>368</X>
+                                  <Y>-9579</Y>
+                                  <W>9</W>
+                                  <H>60</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>374</X>
+                                  <Y>-9549</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
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+                      </chunks>
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+                <item name="Name" type_name="gh_string" type_code="10">Series</item>
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+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Create a series of numbers.</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">b254bf60-50fa-4681-af0d-73c54b6b2861</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Series</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Series</item>
+                  </items>
+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>284</X>
+                          <Y>-9499</Y>
+                          <W>117</W>
+                          <H>64</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>350</X>
+                          <Y>-9467</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="param_input" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">First number in the series</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">cb5011b7-c34d-463f-b08a-47cacb0d480f</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>286</X>
+                              <Y>-9497</Y>
+                              <W>49</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>320</X>
+                              <Y>-9487</Y>
+                            </item>
+                          </items>
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+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">1</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Step size for each successive number</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">c633e19b-fc57-465e-85de-197db093dd12</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Step</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Step</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>286</X>
+                              <Y>-9477</Y>
+                              <W>49</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>320</X>
+                              <Y>-9467</Y>
+                            </item>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">1</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
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+                    <chunk name="param_input" index="2">
+                      <items count="8">
+                        <item name="Description" type_name="gh_string" type_code="10">Number of values in the series</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">9a873087-1a5f-48e3-8429-b45633473efb</item>
+                        <item name="InternalExpression" type_name="gh_string" type_code="10">X-1</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Count</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Count</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">f3cd475a-cc21-4673-ac93-f4e7c4a41f3d</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>286</X>
+                              <Y>-9457</Y>
+                              <W>49</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>320</X>
+                              <Y>-9447</Y>
+                            </item>
+                          </items>
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+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_int32" type_code="3">10</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
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+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Series of numbers</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">b0446fc1-93df-4570-b804-5027ccac20d3</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Series</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Series</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>365</X>
+                              <Y>-9497</Y>
+                              <W>34</W>
+                              <H>60</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>383.5</X>
+                              <Y>-9467</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
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+                <item name="Name" type_name="gh_string" type_code="10">Relay</item>
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+                  <items count="8">
+                    <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                    <item name="Description" type_name="gh_string" type_code="10">A wire relay object</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">fe451803-8125-421a-8c61-dbea4f0f31ca</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Relay</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"></item>
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+                    <item name="Source" index="0" type_name="gh_guid" type_code="9">26dea40c-e669-45c9-8b22-0d8c9287b0cc</item>
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+                <item name="Name" type_name="gh_string" type_code="10">Relay</item>
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+                          <X>282</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Point to project onto curve</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Point on the curve closest to the base point</item>
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+                              <X>375</X>
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+                        <item name="Name" type_name="gh_string" type_code="10">Distance</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Start Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start Point</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">End Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">End Point</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Line</item>
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+                <item name="Name" type_name="gh_string" type_code="10">Remap Numbers</item>
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+                          <X>340</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Value to remap</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">19ee05df-c50d-4405-b982-041cde00af14</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Value</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Value</item>
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+                              <X>307.5</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Source domain</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Source</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Source</item>
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+                        <item name="Prefix" type_name="gh_string" type_code="10"> </item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Emission</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">The material override</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">f7307082-4505-4e67-bd0d-07661fed5a3d</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
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+                                      <ARGB>255;221;160;221</ARGB>
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+                                    <item name="emission" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;66;48;66</ARGB>
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+                                      <ARGB>255;255;255;255</ARGB>
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+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">If True, the Length factor is normalized (0.0 ~ 1.0)</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve parameter at the specified length</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Parameter</item>
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+                              <X>387</X>
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+                        <item name="Name" type_name="gh_string" type_code="10">Vertices</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve degree</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">6def7f7f-7f7e-4c64-8083-6bc515de152d</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Degree</item>
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+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Knot spacing (0=uniform, 1=chord, 2=sqrtchord)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ea0ee446-dac8-4a9e-ba73-cadaf3116301</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve length</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
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+                              <X>384</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve domain</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">76a897c6-0ef4-4ee1-872e-250f4c74908f</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Domain</item>
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+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>362</X>
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+                              <X>384</X>
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+                          <X>354</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Colour of the diffuse channel</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Diffuse</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Diffuse</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                      <chunks count="2">
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+                          <items count="2">
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+                              <X>272</X>
+                              <Y>-11174</Y>
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+                              <X>307</X>
+                              <Y>-11164</Y>
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+                          </items>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="color" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;199;199;199</ARGB>
+                                    </item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
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+                        <item name="Description" type_name="gh_string" type_code="10">Colour of the specular highlight</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">8a2264b6-a997-4df0-a803-edb3768db9af</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Specular</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Specular</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>307</X>
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+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
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+                                <chunk name="Item" index="0">
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+                                      <ARGB>255;0;255;255</ARGB>
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+                        <item name="Description" type_name="gh_string" type_code="10">Emissive colour of the material</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">fde62824-1757-4bb5-887c-8ee9ec8d6926</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Emission</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Emission</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>272</X>
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+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="color" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;0;0;0</ARGB>
+                                    </item>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Amount of transparency (0.0 = opaque, 1.0 = transparent</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">458a46af-50ea-4225-9e68-707d6de96972</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Transparency</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Transparency</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <chunk name="Attributes">
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+                              <X>272</X>
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+                              <X>307</X>
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+                                <chunk name="Item" index="0">
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+                                    <item name="number" type_name="gh_double" type_code="6">0.5</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Amount of shinyness (0 = none, 1 = low shine, 100 = max shine</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">4fa2746e-0a8f-4153-8c7c-7bf8f90afaa3</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Shine</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Shine</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <chunk name="Attributes">
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+                                    <item name="number" type_name="gh_int32" type_code="3">100</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Resulting material</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
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+                              <X>369</X>
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+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">d1110a82-4dae-4a65-a509-e7fa55c078cb</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
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+                                      <ARGB>255;221;160;221</ARGB>
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+                                      <ARGB>255;66;48;66</ARGB>
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+                                      <ARGB>255;255;255;255</ARGB>
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+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
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+                                    <item name="number" type_name="gh_double" type_code="6">0.5</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">If True, the Length factor is normalized (0.0 ~ 1.0)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">4c8663df-19b8-4ad2-bd29-89f318d354bd</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Normalized</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Normalized</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Point</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                              <X>359</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Tangent vector at the specified length</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Tangent</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Tangent</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>359</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve parameter at the specified length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">34bfcb9a-6636-46f2-97c1-28ed7b324797</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Parameter</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Parameter</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                              <X>359</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Line SDL</item>
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+                    <item name="Description" type_name="gh_string" type_code="10">Create a line segment defined by start point, tangent and length.}</item>
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+                    <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Line SDL</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Line SDL</item>
+                  </items>
+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>281</X>
+                          <Y>-13307</Y>
+                          <W>122</W>
+                          <H>64</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>361</X>
+                          <Y>-13275</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="param_input" index="0">
+                      <items count="8">
+                        <item name="Description" type_name="gh_string" type_code="10">Line start point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">4d5d64f8-f030-4a4a-83cb-845b6893c686</item>
+                        <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">9710a3b2-1b4a-47eb-bb35-52a9785816a1</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>283</X>
+                              <Y>-13305</Y>
+                              <W>63</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
+                              <Y>-13295</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="8">
+                        <item name="Description" type_name="gh_string" type_code="10">Line tangent (direction)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">e4a15a86-6e79-4e8b-b15a-2b5d17589a1c</item>
+                        <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Direction</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Direction</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">c627355c-3b34-4540-8338-914774b8da85</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>283</X>
+                              <Y>-13285</Y>
+                              <W>63</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
+                              <Y>-13275</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="vector" type_name="gh_point3d" type_code="51">
+                                      <X>0</X>
+                                      <Y>0</Y>
+                                      <Z>1</Z>
+                                    </item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="2">
+                      <items count="9">
+                        <item name="Description" type_name="gh_string" type_code="10">Line length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">7e3d23af-7fac-4c23-abcb-e24d97f39f8c</item>
+                        <item name="InternalExpression" type_name="gh_string" type_code="10">ABS(X)</item>
+                        <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">f1991bbb-f74d-4e32-9c25-9c363bbd44a4</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>283</X>
+                              <Y>-13265</Y>
+                              <W>63</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
+                              <Y>-13255</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">0.015625</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Line segment</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">db78fce2-46ba-4fc6-82da-c9e1964e118a</item>
+                        <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Line</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Line</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>376</X>
+                              <Y>-13305</Y>
+                              <W>25</W>
+                              <H>60</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>390</X>
+                              <Y>-13275</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
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+                  </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">dd17d442-3776-40b3-ad5b-5e188b56bd4c</item>
+                <item name="Name" type_name="gh_string" type_code="10">Relative Differences</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Compute relative differences for a list of data</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">1347f909-e32c-4cba-92ee-b19ece07ff68</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Relative Differences</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Relative Differences</item>
+                  </items>
+                  <chunks count="3">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>278</X>
+                          <Y>-12017</Y>
+                          <W>128</W>
+                          <H>28</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>331</X>
+                          <Y>-12003</Y>
+                        </item>
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+                      <items count="8">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">List of data to operate on (numbers or points or vectors allowed)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">3e2835c6-fb18-46d1-9306-0baf65f253c6</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Values</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Values</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">ecac96aa-06fe-46b9-a9c8-b9a6e78a9955</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>280</X>
+                              <Y>-12015</Y>
+                              <W>36</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>299.5</X>
+                              <Y>-12003</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
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+                    <chunk name="param_output" index="0">
+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Differences between consecutive items</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">a7ee8bbd-4712-4e5e-9405-614af77ada02</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Differenced</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Differenced</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>346</X>
+                              <Y>-12015</Y>
+                              <W>58</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>376.5</X>
+                              <Y>-12003</Y>
+                            </item>
+                          </items>
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+                <item name="Name" type_name="gh_string" type_code="10">Replace Nulls</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="5">
+                    <item name="Description" type_name="gh_string" type_code="10">Replace nulls or invalid data with other data</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">5ec61dc7-8c52-4aa9-b00e-fdf1baa60694</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Replace Nulls</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Replace Nulls</item>
+                  </items>
+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>274</X>
+                          <Y>-11961</Y>
+                          <W>136</W>
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+                        </item>
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+                          <X>360</X>
+                          <Y>-11939</Y>
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+                      <items count="8">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Items to test for null</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">c768016b-0386-466a-9de7-e6ae57baf0ee</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Items</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Items</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">fbe6644d-2d6b-429d-a03f-f1e9b653bf1e</item>
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+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>276</X>
+                              <Y>-11959</Y>
+                              <W>69</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>312</X>
+                              <Y>-11949</Y>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Items to replace nulls with</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">0d9c54b2-0c82-4c48-bd09-00476960c431</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Replacements</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Replacements</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>276</X>
+                              <Y>-11939</Y>
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+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>312</X>
+                              <Y>-11929</Y>
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+                          <items count="1">
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+                          </items>
+                          <chunks count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="2">
+                                    <item name="TypeName" type_name="gh_string" type_code="10">Grasshopper.Kernel.Types.GH_Integer</item>
+                                    <item name="number" type_name="gh_int32" type_code="3">0</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">List without any nulls</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ecac96aa-06fe-46b9-a9c8-b9a6e78a9955</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Items</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Items</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>375</X>
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+                              <W>33</W>
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+                            </item>
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+                              <X>393</X>
+                              <Y>-11949</Y>
+                            </item>
+                          </items>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Number of items replaced</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">6f48fae9-64f4-472c-80fb-b34dc2fcaed5</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Count</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Count</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>375</X>
+                              <Y>-11939</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
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+                              <X>393</X>
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+                            </item>
+                          </items>
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+                <item name="Name" type_name="gh_string" type_code="10">List Length</item>
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+                    <item name="Description" type_name="gh_string" type_code="10">Measure the length of a list.</item>
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+                    <item name="Name" type_name="gh_string" type_code="10">List Length</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">List Length</item>
+                  </items>
+                  <chunks count="3">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>296</X>
+                          <Y>-12066</Y>
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+                          <X>335</X>
+                          <Y>-12052</Y>
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+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Base list</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">5e7f1e3a-743c-4f3a-866c-a257adc984b4</item>
+                        <item name="Name" type_name="gh_string" type_code="10">List</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">List</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">a7ee8bbd-4712-4e5e-9405-614af77ada02</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>298</X>
+                              <Y>-12064</Y>
+                              <W>22</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>310.5</X>
+                              <Y>-12052</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Number of items in L</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">1472e3b1-d05a-475b-8558-6f9197f66713</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>350</X>
+                              <Y>-12064</Y>
+                              <W>37</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>370</X>
+                              <Y>-12052</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
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+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">59daf374-bc21-4a5e-8282-5504fb7ae9ae</item>
+                <item name="Name" type_name="gh_string" type_code="10">List Item</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="5">
+                    <item name="BaseOutputIndex" type_name="gh_int32" type_code="3">0</item>
+                    <item name="Description" type_name="gh_string" type_code="10">Retrieve a specific item from a list.</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">95354732-888e-4862-82ed-332698838d9c</item>
+                    <item name="Name" type_name="gh_string" type_code="10">List Item</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">List Item</item>
+                  </items>
+                  <chunks count="2">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>305</X>
+                          <Y>-12229</Y>
+                          <W>74</W>
+                          <H>64</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>353</X>
+                          <Y>-12197</Y>
+                        </item>
+                      </items>
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+                      <items count="6">
+                        <item name="InputCount" type_name="gh_int32" type_code="3">3</item>
+                        <item name="InputId" index="0" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
+                        <item name="InputId" index="1" type_name="gh_guid" type_code="9">2e3ab970-8545-46bb-836c-1c11e5610bce</item>
+                        <item name="InputId" index="2" type_name="gh_guid" type_code="9">cb95db89-6165-43b6-9c41-5702bc5bf137</item>
+                        <item name="OutputCount" type_name="gh_int32" type_code="3">1</item>
+                        <item name="OutputId" index="0" type_name="gh_guid" type_code="9">8ec86459-bf01-4409-baee-174d0d2b13d0</item>
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+                      <chunks count="4">
+                        <chunk name="InputParam" index="0">
+                          <items count="8">
+                            <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Base list</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">892d1788-0262-4c63-9768-e2803765196d</item>
+                            <item name="Name" type_name="gh_string" type_code="10">List</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">List</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">a7ee8bbd-4712-4e5e-9405-614af77ada02</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>307</X>
+                                  <Y>-12227</Y>
+                                  <W>31</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>324</X>
+                                  <Y>-12217</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="1">
+                          <items count="7">
+                            <item name="Description" type_name="gh_string" type_code="10">Item index</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">496b4f05-672b-444d-838b-7cf85d3bc0dc</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Index</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Index</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">283935ee-4c2d-417a-a238-b093a3032bec</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="2">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>307</X>
+                                  <Y>-12207</Y>
+                                  <W>31</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>324</X>
+                                  <Y>-12197</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                            <chunk name="PersistentData">
+                              <items count="1">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Branch" index="0">
+                                  <items count="2">
+                                    <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                    <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                                  </items>
+                                  <chunks count="1">
+                                    <chunk name="Item" index="0">
+                                      <items count="1">
+                                        <item name="number" type_name="gh_int32" type_code="3">0</item>
+                                      </items>
+                                    </chunk>
+                                  </chunks>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="InputParam" index="2">
+                          <items count="6">
+                            <item name="Description" type_name="gh_string" type_code="10">Wrap index to list bounds</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">59bcac08-b7f3-4fd6-82f2-a0204267eeef</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Wrap</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Wrap</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                          </items>
+                          <chunks count="2">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>307</X>
+                                  <Y>-12187</Y>
+                                  <W>31</W>
+                                  <H>20</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>324</X>
+                                  <Y>-12177</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                            <chunk name="PersistentData">
+                              <items count="1">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Branch" index="0">
+                                  <items count="2">
+                                    <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                    <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                                  </items>
+                                  <chunks count="1">
+                                    <chunk name="Item" index="0">
+                                      <items count="1">
+                                        <item name="boolean" type_name="gh_bool" type_code="1">false</item>
+                                      </items>
+                                    </chunk>
+                                  </chunks>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                        <chunk name="OutputParam" index="0">
+                          <items count="7">
+                            <item name="Description" type_name="gh_string" type_code="10">Item at {i'}</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">d9fae5d7-efb7-4c9c-a29f-f4dd75fb0ecf</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Item</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">i</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Attributes">
+                              <items count="2">
+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>368</X>
+                                  <Y>-12227</Y>
+                                  <W>9</W>
+                                  <H>60</H>
+                                </item>
+                                <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                                  <X>374</X>
+                                  <Y>-12197</Y>
+                                </item>
+                              </items>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">e64c5fb1-845c-4ab1-8911-5f338516ba67</item>
+                <item name="Name" type_name="gh_string" type_code="10">Series</item>
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+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Create a series of numbers.</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">da20cb88-16bb-49d0-a32a-fd47e578d592</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Series</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Series</item>
+                  </items>
+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>284</X>
+                          <Y>-12147</Y>
+                          <W>117</W>
+                          <H>64</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>350</X>
+                          <Y>-12115</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="param_input" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">First number in the series</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">6b63ceb6-2e0f-405a-af1c-ec6292c33c59</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>286</X>
+                              <Y>-12145</Y>
+                              <W>49</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>320</X>
+                              <Y>-12135</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">1</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Step size for each successive number</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">6ba8dae6-4888-48cc-a1db-1bdcff1311f7</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Step</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Step</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>286</X>
+                              <Y>-12125</Y>
+                              <W>49</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>320</X>
+                              <Y>-12115</Y>
+                            </item>
+                          </items>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">1</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="2">
+                      <items count="8">
+                        <item name="Description" type_name="gh_string" type_code="10">Number of values in the series</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">a96c4d40-c531-4f3e-b804-f895175f70f1</item>
+                        <item name="InternalExpression" type_name="gh_string" type_code="10">X-1</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Count</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Count</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">1472e3b1-d05a-475b-8558-6f9197f66713</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>286</X>
+                              <Y>-12105</Y>
+                              <W>49</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>320</X>
+                              <Y>-12095</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_int32" type_code="3">10</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
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+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Series of numbers</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">283935ee-4c2d-417a-a238-b093a3032bec</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Series</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Series</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>365</X>
+                              <Y>-12145</Y>
+                              <W>34</W>
+                              <H>60</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>383.5</X>
+                              <Y>-12115</Y>
+                            </item>
+                          </items>
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+                <item name="GUID" type_name="gh_guid" type_code="9">b6236720-8d88-4289-93c3-ac4c99f9b97b</item>
+                <item name="Name" type_name="gh_string" type_code="10">Relay</item>
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+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="8">
+                    <item name="Access" type_name="gh_int32" type_code="3">2</item>
+                    <item name="Description" type_name="gh_string" type_code="10">A wire relay object</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">fbe6644d-2d6b-429d-a03f-f1e9b653bf1e</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Relay</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"></item>
+                    <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                    <item name="Source" index="0" type_name="gh_guid" type_code="9">b9ec55c6-6b1e-45bf-8aaa-d1959b0a4f95</item>
+                    <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>322</X>
+                          <Y>-11898</Y>
+                          <W>40</W>
+                          <H>16</H>
+                        </item>
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+                          <X>342</X>
+                          <Y>-11890</Y>
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+                <item name="Name" type_name="gh_string" type_code="10">Relay</item>
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+                    <item name="Description" type_name="gh_string" type_code="10">A wire relay object</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">df18c19e-636f-4d08-9f5c-be622a8fc533</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Relay</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"></item>
+                    <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                    <item name="Source" index="0" type_name="gh_guid" type_code="9">d9fae5d7-efb7-4c9c-a29f-f4dd75fb0ecf</item>
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+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>322</X>
+                          <Y>-12262</Y>
+                          <W>40</W>
+                          <H>16</H>
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+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>342</X>
+                          <Y>-12254</Y>
+                        </item>
+                      </items>
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+              </chunks>
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+                <item name="Name" type_name="gh_string" type_code="10">Group</item>
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+                    <item name="Colour" type_name="gh_drawing_color" type_code="36">
+                      <ARGB>255;255;255;255</ARGB>
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+                    <item name="Description" type_name="gh_string" type_code="10">A group of Grasshopper objects</item>
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+                    <item name="Name" type_name="gh_string" type_code="10">Group</item>
+                    <item name="NickName" type_name="gh_string" type_code="10"></item>
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+                <item name="GUID" type_name="gh_guid" type_code="9">2dc44b22-b1dd-460a-a704-6462d6e91096</item>
+                <item name="Name" type_name="gh_string" type_code="10">Curve Closest Point</item>
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+                    <item name="Description" type_name="gh_string" type_code="10">Find the closest point on a curve.</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">f9309d23-c397-40a8-8be5-298becd62848</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Curve Closest Point</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Curve Closest Point</item>
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+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>282</X>
+                          <Y>-11762</Y>
+                          <W>120</W>
+                          <H>64</H>
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+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>332</X>
+                          <Y>-11730</Y>
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+                        <item name="Description" type_name="gh_string" type_code="10">Point to project onto curve</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">6e5af14a-f6a6-464f-9fbe-1a97ad719607</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Point</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">9710a3b2-1b4a-47eb-bb35-52a9785816a1</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>284</X>
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+                              <W>33</W>
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+                              <X>302</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve to project onto</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ba419f3c-6b7a-403a-bef1-fce41a5f9c04</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">b6eca665-6f03-4710-97cb-32685e1e9c7c</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>284</X>
+                              <Y>-11730</Y>
+                              <W>33</W>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302</X>
+                              <Y>-11715</Y>
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+                          </items>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Point on the curve closest to the base point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">6e8b5c58-5ba0-4fcc-94eb-12ed3c5e82e2</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Point</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
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+                              <X>347</X>
+                              <Y>-11760</Y>
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+                              <X>375</X>
+                              <Y>-11750</Y>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Parameter on curve domain of closest point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">78c32c8e-370e-4c70-ad23-e4c978d6fdd2</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Parameter</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Parameter</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                              <X>347</X>
+                              <Y>-11740</Y>
+                              <W>53</W>
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+                              <X>375</X>
+                              <Y>-11730</Y>
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+                        <item name="Description" type_name="gh_string" type_code="10">Distance between base point and curve</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">2bd5a390-5952-4849-bcd5-54f16a0164a8</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Distance</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Distance</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>347</X>
+                              <Y>-11720</Y>
+                              <W>53</W>
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+                              <X>375</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Line</item>
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+                    <item name="Description" type_name="gh_string" type_code="10">Create a line between two points.</item>
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+                          <X>285</X>
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+                          <X>357</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Line start point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">732d5238-e9bf-400f-a2d4-9454bb3c2c30</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start Point</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                              <X>287</X>
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+                              <X>316</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Line end point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">d8421500-9d61-4745-8736-3eff7f4f8b34</item>
+                        <item name="Name" type_name="gh_string" type_code="10">End Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">End Point</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                              <X>287</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Line segment</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">c627355c-3b34-4540-8338-914774b8da85</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Line</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Line</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <chunk name="Attributes">
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+                              <X>372</X>
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+                              <X>386</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Remap Numbers</item>
+              </items>
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+                    <item name="Description" type_name="gh_string" type_code="10">Remap numbers into a new numeric domain</item>
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+                    <item name="Name" type_name="gh_string" type_code="10">Remap Numbers</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Remap Numbers</item>
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+                          <X>285</X>
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+                          <X>340</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Value to remap</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">70f55ecf-56d4-467c-9bfb-2ed9750dc35d</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Value</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Value</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                              <X>287</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Source domain</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">d409783a-653e-42a5-b28c-89e58ec1ac8f</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Source</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Source</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">b8fa53cb-3806-4378-bd44-d72e710a04dc</item>
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+                              <X>287</X>
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+                    <item name="NickName" type_name="gh_string" type_code="10">Create Material</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Colour of the diffuse channel</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">493ffd0c-960f-432c-9bcf-564ae56de5c7</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Diffuse</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Diffuse</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                                    <item name="color" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;217;217;217</ARGB>
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+                        <item name="Description" type_name="gh_string" type_code="10">Colour of the specular highlight</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">05a09a11-c0a5-4afd-82bd-3980208c3335</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Specular</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Specular</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                    </chunk>
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+                        <item name="Description" type_name="gh_string" type_code="10">Emissive colour of the material</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">e958ad45-7edc-4728-ae45-a292a6d635b6</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Emission</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Emission</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                                      <ARGB>255;0;0;0</ARGB>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Amount of transparency (0.0 = opaque, 1.0 = transparent</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">a2f064b0-9b77-4fcd-a036-f1bf5d30a16b</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Transparency</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Transparency</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                                    <item name="number" type_name="gh_double" type_code="6">0.5</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Amount of shinyness (0 = none, 1 = low shine, 100 = max shine</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">616eaa96-298f-4d5e-9783-d68039448617</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Shine</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Shine</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Resulting material</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ea38e515-15ff-496a-8129-afe7efcf347a</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">The material override</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">29fa83ac-39cf-415e-ac6d-76c4161ea17d</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Material</item>
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+                                    <item name="diffuse" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;221;160;221</ARGB>
+                                    </item>
+                                    <item name="emission" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;66;48;66</ARGB>
+                                    </item>
+                                    <item name="shine" type_name="gh_double" type_code="6">0.5</item>
+                                    <item name="specular" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;255;255;255</ARGB>
+                                    </item>
+                                    <item name="transparency" type_name="gh_double" type_code="6">0</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve to evaluate</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Length factor for curve evaluation</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">4aeef61a-f213-46ec-8e3e-bf86fae97aa1</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve domain</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">394f8526-f9d6-4183-97f5-4e4697bfc880</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Domain</item>
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+                              <X>384</X>
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+                                <chunk name="Item" index="0">
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+                    </chunk>
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+                        <item name="Name" type_name="gh_string" type_code="10">Specular</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Specular</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Emission</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Transparency</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Transparency</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Shine</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Shine</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                    <item name="Name" type_name="gh_string" type_code="10">Group</item>
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+                <item name="Name" type_name="gh_string" type_code="10">Explode</item>
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+                <chunk name="Container">
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+                    <item name="Description" type_name="gh_string" type_code="10">Explode a curve into smaller segments.</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">6fc3ad0e-8ab4-4b81-93e4-0a3a9911481c</item>
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+                    <item name="NickName" type_name="gh_string" type_code="10">Explode</item>
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+                          <X>274</X>
+                          <Y>-14130</Y>
+                          <W>136</W>
+                          <H>44</H>
+                        </item>
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+                          <X>341</X>
+                          <Y>-14108</Y>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve to explode</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                        <chunk name="Attributes">
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+                              <X>276</X>
+                              <Y>-14128</Y>
+                              <W>50</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302.5</X>
+                              <Y>-14118</Y>
+                            </item>
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+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Recursive decomposition until all segments are atomic</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">674e492e-ba29-469c-b803-089a048246ed</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Recursive</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Recursive</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>276</X>
+                              <Y>-14108</Y>
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+                              <H>20</H>
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="boolean" type_name="gh_bool" type_code="1">true</item>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Exploded segments that make up the base curve</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">3f136fc5-a924-47c0-a638-26099d128b6d</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Segments</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Segments</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
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+                              <X>356</X>
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+                              <X>383.5</X>
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+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Vertices</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Vertices</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                              <X>356</X>
+                              <Y>-14108</Y>
+                              <W>52</W>
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+                              <X>383.5</X>
+                              <Y>-14098</Y>
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+                <item name="Name" type_name="gh_string" type_code="10">Evaluate Length</item>
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+                    <item name="Description" type_name="gh_string" type_code="10">Evaluate a curve at a certain factor along its length. Length factors can be supplied both in curve units and normalized units. Change the [N] parameter to toggle between the two modes.</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
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+                          <X>270</X>
+                          <Y>-14213</Y>
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+                          <H>64</H>
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+                          <X>344</X>
+                          <Y>-14181</Y>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve to evaluate</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
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+                              <X>272</X>
+                              <Y>-14211</Y>
+                              <W>57</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302</X>
+                              <Y>-14201</Y>
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+                        <item name="Description" type_name="gh_string" type_code="10">Length factor for curve evaluation</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">55936bac-f6b4-4443-b14e-ee1969cb4bf0</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>272</X>
+                              <Y>-14191</Y>
+                              <W>57</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302</X>
+                              <Y>-14181</Y>
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+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">0.5</item>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">If True, the Length factor is normalized (0.0 ~ 1.0)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">fe70376a-a4a1-4960-aece-e71c3c84216b</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Normalized</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Normalized</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-14171</Y>
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+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302</X>
+                              <Y>-14161</Y>
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+                          <items count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
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+                              <chunks count="1">
+                                <chunk name="Item" index="0">
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+                                    <item name="boolean" type_name="gh_bool" type_code="1">true</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Point at the specified length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">135398f1-d308-4ab6-9cfd-5d1fa2527ef3</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Point</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>359</X>
+                              <Y>-14211</Y>
+                              <W>53</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>387</X>
+                              <Y>-14201</Y>
+                            </item>
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+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Tangent vector at the specified length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">6da53b0b-e1e6-4454-a6a6-6a2da17ddd0e</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Tangent</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Tangent</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>359</X>
+                              <Y>-14191</Y>
+                              <W>53</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>387</X>
+                              <Y>-14181</Y>
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+                    <chunk name="param_output" index="2">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve parameter at the specified length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">57bb37c6-233d-42a9-bd0c-d074bd2f8b29</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Parameter</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Parameter</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>359</X>
+                              <Y>-14171</Y>
+                              <W>53</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>387</X>
+                              <Y>-14161</Y>
+                            </item>
+                          </items>
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+                <item name="GUID" type_name="gh_guid" type_code="9">4c619bc9-39fd-4717-82a6-1e07ea237bbe</item>
+                <item name="Name" type_name="gh_string" type_code="10">Line SDL</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Create a line segment defined by start point, tangent and length.}</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">fae8e3d2-cd54-4bab-a5cb-d279831bdc9d</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Line SDL</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Line SDL</item>
+                  </items>
+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>281</X>
+                          <Y>-15846</Y>
+                          <W>122</W>
+                          <H>64</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>361</X>
+                          <Y>-15814</Y>
+                        </item>
+                      </items>
+                    </chunk>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Line start point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">05914fd9-7b09-4ffc-b683-9c6b4a92dcc4</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">135398f1-d308-4ab6-9cfd-5d1fa2527ef3</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>283</X>
+                              <Y>-15844</Y>
+                              <W>63</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
+                              <Y>-15834</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Line tangent (direction)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">2e55c922-b10e-447e-949e-d424319fca3a</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Direction</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Direction</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">c8accacc-e2a7-4875-8ddc-a6d4b0ed1e5d</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>283</X>
+                              <Y>-15824</Y>
+                              <W>63</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
+                              <Y>-15814</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="vector" type_name="gh_point3d" type_code="51">
+                                      <X>0</X>
+                                      <Y>0</Y>
+                                      <Z>1</Z>
+                                    </item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="2">
+                      <items count="8">
+                        <item name="Description" type_name="gh_string" type_code="10">Line length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ee8edbc4-3045-45e6-9036-c0d147888758</item>
+                        <item name="InternalExpression" type_name="gh_string" type_code="10">ABS(X)</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">ce93fead-eb21-4341-b2da-3c556223100f</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>283</X>
+                              <Y>-15804</Y>
+                              <W>63</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
+                              <Y>-15794</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">0.015625</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Line segment</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">18d99106-5942-429a-baed-e868b1400d84</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Line</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Line</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>376</X>
+                              <Y>-15844</Y>
+                              <W>25</W>
+                              <H>60</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>390</X>
+                              <Y>-15814</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">dd17d442-3776-40b3-ad5b-5e188b56bd4c</item>
+                <item name="Name" type_name="gh_string" type_code="10">Relative Differences</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Compute relative differences for a list of data</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">f54313d0-07c1-443c-91f8-c83f5ab112f4</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Relative Differences</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Relative Differences</item>
+                  </items>
+                  <chunks count="3">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>278</X>
+                          <Y>-14556</Y>
+                          <W>128</W>
+                          <H>28</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>331</X>
+                          <Y>-14542</Y>
+                        </item>
+                      </items>
+                    </chunk>
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+                      <items count="8">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">List of data to operate on (numbers or points or vectors allowed)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">872dc3c0-b0ff-4e03-88b0-50d574c4e74c</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Values</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Values</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">8e4787a9-c486-4f41-9370-aecf8dc5161a</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>280</X>
+                              <Y>-14554</Y>
+                              <W>36</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>299.5</X>
+                              <Y>-14542</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
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+                    <chunk name="param_output" index="0">
+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Differences between consecutive items</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">0fe4391e-f0d6-48a8-9e99-43893eeaa9d4</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Differenced</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Differenced</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>346</X>
+                              <Y>-14554</Y>
+                              <W>58</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>376.5</X>
+                              <Y>-14542</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                  </chunks>
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+              </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">f3230ecb-3631-4d6f-86f2-ef4b2ed37f45</item>
+                <item name="Name" type_name="gh_string" type_code="10">Replace Nulls</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="5">
+                    <item name="Description" type_name="gh_string" type_code="10">Replace nulls or invalid data with other data</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">638f68d9-8570-45d7-bff6-56e453c5e3a2</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Replace Nulls</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Replace Nulls</item>
+                  </items>
+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>274</X>
+                          <Y>-14500</Y>
+                          <W>136</W>
+                          <H>44</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>360</X>
+                          <Y>-14478</Y>
+                        </item>
+                      </items>
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+                    <chunk name="param_input" index="0">
+                      <items count="8">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Items to test for null</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">e54c4377-9de0-44ef-a182-b8b484e64d2a</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Items</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Items</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">1fe78077-783f-4271-98b6-3325b51e953c</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>276</X>
+                              <Y>-14498</Y>
+                              <W>69</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>312</X>
+                              <Y>-14488</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
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+                    <chunk name="param_input" index="1">
+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Items to replace nulls with</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">423fb3e0-d83d-430a-8927-e39b85ed0bf7</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Replacements</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Replacements</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>276</X>
+                              <Y>-14478</Y>
+                              <W>69</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>312</X>
+                              <Y>-14468</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="2">
+                                    <item name="TypeName" type_name="gh_string" type_code="10">Grasshopper.Kernel.Types.GH_Integer</item>
+                                    <item name="number" type_name="gh_int32" type_code="3">0</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
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+                      </chunks>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">List without any nulls</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">8e4787a9-c486-4f41-9370-aecf8dc5161a</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Items</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Items</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>375</X>
+                              <Y>-14498</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>393</X>
+                              <Y>-14488</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Number of items replaced</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">6033aab7-8033-42ba-ba27-2316ef872637</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Count</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Count</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>375</X>
+                              <Y>-14478</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>393</X>
+                              <Y>-14468</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
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+                  </chunks>
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+              </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">1817fd29-20ae-4503-b542-f0fb651e67d7</item>
+                <item name="Name" type_name="gh_string" type_code="10">List Length</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Measure the length of a list.</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">06316c67-a7b1-4177-8f14-5a8aadeb4301</item>
+                    <item name="Name" type_name="gh_string" type_code="10">List Length</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">List Length</item>
+                  </items>
+                  <chunks count="3">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>296</X>
+                          <Y>-14605</Y>
+                          <W>93</W>
+                          <H>28</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>335</X>
+                          <Y>-14591</Y>
+                        </item>
+                      </items>
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+                      <items count="8">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Base list</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">2da8df08-ca57-411a-b66d-278daebfc4cc</item>
+                        <item name="Name" type_name="gh_string" type_code="10">List</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">List</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">0fe4391e-f0d6-48a8-9e99-43893eeaa9d4</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>298</X>
+                              <Y>-14603</Y>
+                              <W>22</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>310.5</X>
+                              <Y>-14591</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Number of items in L</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ed275ea6-9c53-40f5-a055-7a2f30f86d30</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>350</X>
+                              <Y>-14603</Y>
+                              <W>37</W>
+                              <H>24</H>
+                            </item>
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+                              <X>370</X>
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+                            <item name="Name" type_name="gh_string" type_code="10">List</item>
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+                                  <X>307</X>
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+                            <item name="Name" type_name="gh_string" type_code="10">Index</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Index</item>
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+                                  <X>307</X>
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+                            <item name="Name" type_name="gh_string" type_code="10">Wrap</item>
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+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                                  <X>307</X>
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+                              <X>286</X>
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+                        <item name="NickName" type_name="gh_string" type_code="10">Count</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Series</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Diffuse</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Diffuse</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-15970</Y>
+                              <W>67</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>307</X>
+                              <Y>-15960</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="color" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;209;209;209</ARGB>
+                                    </item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Colour of the specular highlight</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">3db19cb0-cee9-44d5-86c5-e3bf6a8f046d</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Specular</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Specular</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-15950</Y>
+                              <W>67</W>
+                              <H>20</H>
+                            </item>
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+                              <X>307</X>
+                              <Y>-15940</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="color" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;0;255;255</ARGB>
+                                    </item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="2">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Emissive colour of the material</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">4c272b89-d2d5-46fd-9d6d-d50cda182e77</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Emission</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Emission</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-15930</Y>
+                              <W>67</W>
+                              <H>20</H>
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+                              <X>307</X>
+                              <Y>-15920</Y>
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+                          </items>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="color" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;0;0;0</ARGB>
+                                    </item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="3">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Amount of transparency (0.0 = opaque, 1.0 = transparent</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">efa33a42-558b-4b50-bec0-3470fcbdaa62</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Transparency</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Transparency</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-15910</Y>
+                              <W>67</W>
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+                              <X>307</X>
+                              <Y>-15900</Y>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">0.5</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="4">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Amount of shinyness (0 = none, 1 = low shine, 100 = max shine</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">8afbdbff-933f-4010-8083-4efa1ac94cf4</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Shine</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Shine</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>272</X>
+                              <Y>-15890</Y>
+                              <W>67</W>
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+                              <X>307</X>
+                              <Y>-15880</Y>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_int32" type_code="3">100</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Resulting material</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">0e38293c-2a2c-4da9-9621-85859333ef4a</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Material</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>369</X>
+                              <Y>-15970</Y>
+                              <W>43</W>
+                              <H>100</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>392</X>
+                              <Y>-15920</Y>
+                            </item>
+                          </items>
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+                <item name="GUID" type_name="gh_guid" type_code="9">537b0419-bbc2-4ff4-bf08-afe526367b2c</item>
+                <item name="Name" type_name="gh_string" type_code="10">Custom Preview</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="6">
+                    <item name="Description" type_name="gh_string" type_code="10">Allows for customized geometry previews</item>
+                    <item name="IncludeInRender" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">f267a757-a47e-49d1-b2b1-412314ae6d50</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Custom Preview</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Custom Preview</item>
+                    <item name="ViewportFilter" type_name="gh_string" type_code="10"></item>
+                  </items>
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+                    <chunk name="Attributes">
+                      <items count="2">
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+                          <X>301</X>
+                          <Y>-16043</Y>
+                          <W>82</W>
+                          <H>44</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>369</X>
+                          <Y>-16021</Y>
+                        </item>
+                      </items>
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+                    <chunk name="param_input" index="0">
+                      <items count="8">
+                        <item name="Description" type_name="gh_string" type_code="10">Geometry to preview</item>
+                        <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">467cb7d2-d998-4279-b670-2e28b462f203</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Geometry</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Geometry</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">18d99106-5942-429a-baed-e868b1400d84</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>303</X>
+                              <Y>-16041</Y>
+                              <W>51</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>330</X>
+                              <Y>-16031</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">The material override</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">80be5169-d54c-475f-a068-5eab5471d5d3</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Material</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">0e38293c-2a2c-4da9-9621-85859333ef4a</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>303</X>
+                              <Y>-16021</Y>
+                              <W>51</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>330</X>
+                              <Y>-16011</Y>
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+                          </items>
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+                          <items count="1">
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+                          </items>
+                          <chunks count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="5">
+                                    <item name="diffuse" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;221;160;221</ARGB>
+                                    </item>
+                                    <item name="emission" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;66;48;66</ARGB>
+                                    </item>
+                                    <item name="shine" type_name="gh_double" type_code="6">0.5</item>
+                                    <item name="specular" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;255;255;255</ARGB>
+                                    </item>
+                                    <item name="transparency" type_name="gh_double" type_code="6">0</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
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+              </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">6b021f56-b194-4210-b9a1-6cef3b7d0848</item>
+                <item name="Name" type_name="gh_string" type_code="10">Evaluate Length</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="5">
+                    <item name="Description" type_name="gh_string" type_code="10">Evaluate a curve at a certain factor along its length. Length factors can be supplied both in curve units and normalized units. Change the [N] parameter to toggle between the two modes.</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">014481ea-9b6e-4922-b10c-6b14a4567373</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Evaluate Length</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Evaluate Length</item>
+                  </items>
+                  <chunks count="7">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>270</X>
+                          <Y>-16131</Y>
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+                          <H>64</H>
+                        </item>
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+                          <X>344</X>
+                          <Y>-16099</Y>
+                        </item>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve to evaluate</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">e605b23f-65d2-4140-83ae-f4e69903eb43</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">18d99106-5942-429a-baed-e868b1400d84</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-16129</Y>
+                              <W>57</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302</X>
+                              <Y>-16119</Y>
+                            </item>
+                          </items>
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+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Length factor for curve evaluation</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">6e9f3f9d-929d-481d-9311-beddc75e5565</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>272</X>
+                              <Y>-16109</Y>
+                              <W>57</W>
+                              <H>20</H>
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+                              <X>302</X>
+                              <Y>-16099</Y>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">1</item>
+                                  </items>
+                                </chunk>
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+                    </chunk>
+                    <chunk name="param_input" index="2">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">If True, the Length factor is normalized (0.0 ~ 1.0)</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
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+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Vertices</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Vertices</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve degree</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Degree</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Periodic</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Periodic</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Resulting nurbs curve</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve length</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>384</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve domain</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ad9f7720-63e5-4f6e-b5ee-ef578e65d7ed</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Domain</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Domain</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>362</X>
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+                              <X>384</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Create Material</item>
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+                          <X>270</X>
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+                          <X>354</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Colour of the diffuse channel</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Diffuse</item>
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+                              <X>307</X>
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+                                  <items count="1">
+                                    <item name="color" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;184;184;184</ARGB>
+                                    </item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Colour of the specular highlight</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Emission</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Emission</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">d055ffba-0804-4d45-9cfd-edb029d68af7</item>
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+                <item name="Name" type_name="gh_string" type_code="10">Explode</item>
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+                    <item name="Description" type_name="gh_string" type_code="10">Explode a curve into smaller segments.</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
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+                    <item name="NickName" type_name="gh_string" type_code="10">Explode</item>
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+                      <items count="2">
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+                          <X>274</X>
+                          <Y>-16628</Y>
+                          <W>136</W>
+                          <H>44</H>
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+                          <X>341</X>
+                          <Y>-16606</Y>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve to explode</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                              <Y>-16626</Y>
+                              <W>50</W>
+                              <H>20</H>
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+                              <X>302.5</X>
+                              <Y>-16616</Y>
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+                      </chunks>
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+                        <item name="Description" type_name="gh_string" type_code="10">Recursive decomposition until all segments are atomic</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Recursive</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Recursive</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>276</X>
+                              <Y>-16606</Y>
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+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="boolean" type_name="gh_bool" type_code="1">true</item>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Exploded segments that make up the base curve</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">6e912b71-6dd8-464a-b6ad-6dcaab0d4fd7</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Segments</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Segments</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                      <chunks count="1">
+                        <chunk name="Attributes">
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+                              <X>356</X>
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+                              <W>52</W>
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+                              <X>383.5</X>
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+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Vertices</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Vertices</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                              <X>383.5</X>
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+                          <X>270</X>
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+                          <X>344</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve to evaluate</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
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+                              <X>272</X>
+                              <Y>-16709</Y>
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+                              <X>302</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Length factor for curve evaluation</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>272</X>
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+                              <X>302</X>
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+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
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+                              <chunks count="1">
+                                <chunk name="Item" index="0">
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+                                    <item name="number" type_name="gh_double" type_code="6">0.5</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">If True, the Length factor is normalized (0.0 ~ 1.0)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">767aa62b-2691-4d6c-828f-4fdaf03d2da4</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Normalized</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Normalized</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>272</X>
+                              <Y>-16669</Y>
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+                              <X>302</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Point at the specified length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">882dcb40-5b72-498d-9c64-65c0b941cae3</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Point</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>359</X>
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+                              <X>387</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Tangent vector at the specified length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">f50b053d-77a3-4882-9403-e3907968e57a</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Tangent</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Tangent</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
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+                              <X>359</X>
+                              <Y>-16689</Y>
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+                              <X>387</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve parameter at the specified length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">d6c587e7-7ec4-46d0-9d88-41bde9011bac</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Parameter</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Parameter</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <chunk name="Attributes">
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+                              <X>359</X>
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+                              <X>387</X>
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+                <item name="GUID" type_name="gh_guid" type_code="9">4c619bc9-39fd-4717-82a6-1e07ea237bbe</item>
+                <item name="Name" type_name="gh_string" type_code="10">Line SDL</item>
+              </items>
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+                  <items count="5">
+                    <item name="Description" type_name="gh_string" type_code="10">Create a line segment defined by start point, tangent and length.}</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">9810ad7f-10dd-4ec6-8555-0406bec4a4fa</item>
+                    <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Line SDL</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Line SDL</item>
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+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>281</X>
+                          <Y>-18344</Y>
+                          <W>122</W>
+                          <H>64</H>
+                        </item>
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+                          <X>361</X>
+                          <Y>-18312</Y>
+                        </item>
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+                      <items count="8">
+                        <item name="Description" type_name="gh_string" type_code="10">Line start point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">df46c26e-69e8-4416-9e8f-dfa81d6bdf2f</item>
+                        <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">882dcb40-5b72-498d-9c64-65c0b941cae3</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>283</X>
+                              <Y>-18342</Y>
+                              <W>63</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
+                              <Y>-18332</Y>
+                            </item>
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+                    <chunk name="param_input" index="1">
+                      <items count="8">
+                        <item name="Description" type_name="gh_string" type_code="10">Line tangent (direction)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">988065a4-750e-419d-9cb4-9250720282f5</item>
+                        <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Direction</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Direction</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">8e4ebdf7-ffd5-4ba1-b757-2144ba2da9c9</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>283</X>
+                              <Y>-18322</Y>
+                              <W>63</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
+                              <Y>-18312</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="vector" type_name="gh_point3d" type_code="51">
+                                      <X>0</X>
+                                      <Y>0</Y>
+                                      <Z>1</Z>
+                                    </item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="2">
+                      <items count="9">
+                        <item name="Description" type_name="gh_string" type_code="10">Line length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">82827835-5e88-41d2-9bb3-f8264249af52</item>
+                        <item name="InternalExpression" type_name="gh_string" type_code="10">ABS(X)</item>
+                        <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">9e8f42fa-ec73-466a-b4c3-63180cd047e6</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>283</X>
+                              <Y>-18302</Y>
+                              <W>63</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
+                              <Y>-18292</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">0.015625</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Line segment</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">05c0ca83-e9c2-4a1f-a8da-0a1fc8b56a58</item>
+                        <item name="Locked" type_name="gh_bool" type_code="1">true</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Line</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Line</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>376</X>
+                              <Y>-18342</Y>
+                              <W>25</W>
+                              <H>60</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>390</X>
+                              <Y>-18312</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="244">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">dd17d442-3776-40b3-ad5b-5e188b56bd4c</item>
+                <item name="Name" type_name="gh_string" type_code="10">Relative Differences</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Compute relative differences for a list of data</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">4cd7dfff-e221-4ff1-8802-8fe241e766d1</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Relative Differences</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Relative Differences</item>
+                  </items>
+                  <chunks count="3">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>278</X>
+                          <Y>-17054</Y>
+                          <W>128</W>
+                          <H>28</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>331</X>
+                          <Y>-17040</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="param_input" index="0">
+                      <items count="8">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">List of data to operate on (numbers or points or vectors allowed)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">cde45746-681a-4065-be40-d249688be6df</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Values</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Values</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">649871a0-d89b-4687-a488-b2e86892fcbd</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>280</X>
+                              <Y>-17052</Y>
+                              <W>36</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>299.5</X>
+                              <Y>-17040</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Differences between consecutive items</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">e3d7df02-9947-4945-b92e-260496513b93</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Differenced</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Differenced</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>346</X>
+                              <Y>-17052</Y>
+                              <W>58</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>376.5</X>
+                              <Y>-17040</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
+            <chunk name="Object" index="245">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">f3230ecb-3631-4d6f-86f2-ef4b2ed37f45</item>
+                <item name="Name" type_name="gh_string" type_code="10">Replace Nulls</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="5">
+                    <item name="Description" type_name="gh_string" type_code="10">Replace nulls or invalid data with other data</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">a5aba98c-3889-4ed6-b36c-47707807399a</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Replace Nulls</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Replace Nulls</item>
+                  </items>
+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>274</X>
+                          <Y>-16998</Y>
+                          <W>136</W>
+                          <H>44</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>360</X>
+                          <Y>-16976</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="param_input" index="0">
+                      <items count="8">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Items to test for null</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">9264edfc-800d-402d-bc20-148c16c4d27f</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Items</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Items</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">c2464962-a513-4b3c-9827-a9d58ed4fb35</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>276</X>
+                              <Y>-16996</Y>
+                              <W>69</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>312</X>
+                              <Y>-16986</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Items to replace nulls with</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">7ea01a26-1580-4d26-a10e-3a805067c385</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Replacements</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Replacements</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>276</X>
+                              <Y>-16976</Y>
+                              <W>69</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>312</X>
+                              <Y>-16966</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="2">
+                                    <item name="TypeName" type_name="gh_string" type_code="10">Grasshopper.Kernel.Types.GH_Integer</item>
+                                    <item name="number" type_name="gh_int32" type_code="3">0</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">List without any nulls</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">649871a0-d89b-4687-a488-b2e86892fcbd</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Items</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Items</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>375</X>
+                              <Y>-16996</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>393</X>
+                              <Y>-16986</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Number of items replaced</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">1c8017e4-900a-4989-b1c7-5a5779e3f21e</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Count</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Count</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>375</X>
+                              <Y>-16976</Y>
+                              <W>33</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>393</X>
+                              <Y>-16966</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
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+                  </chunks>
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+              </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">1817fd29-20ae-4503-b542-f0fb651e67d7</item>
+                <item name="Name" type_name="gh_string" type_code="10">List Length</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Measure the length of a list.</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">8edca42d-78fa-481d-82be-c3e587b0aeb5</item>
+                    <item name="Name" type_name="gh_string" type_code="10">List Length</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">List Length</item>
+                  </items>
+                  <chunks count="3">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>296</X>
+                          <Y>-17103</Y>
+                          <W>93</W>
+                          <H>28</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>335</X>
+                          <Y>-17089</Y>
+                        </item>
+                      </items>
+                    </chunk>
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+                      <items count="8">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Base list</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">88cf9833-4d40-47ce-8933-f1e42898b08a</item>
+                        <item name="Name" type_name="gh_string" type_code="10">List</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">List</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">e3d7df02-9947-4945-b92e-260496513b93</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>298</X>
+                              <Y>-17101</Y>
+                              <W>22</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>310.5</X>
+                              <Y>-17089</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Number of items in L</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">a77cf5a7-f85d-4322-b9d6-8de5e4d56ab3</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>350</X>
+                              <Y>-17101</Y>
+                              <W>37</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>370</X>
+                              <Y>-17089</Y>
+                            </item>
+                          </items>
+                        </chunk>
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+                <item name="Name" type_name="gh_string" type_code="10">List Item</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="5">
+                    <item name="BaseOutputIndex" type_name="gh_int32" type_code="3">0</item>
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+                    <item name="Name" type_name="gh_string" type_code="10">List Item</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">List Item</item>
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+                    <chunk name="Attributes">
+                      <items count="2">
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+                          <X>305</X>
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+                          <X>353</X>
+                          <Y>-17234</Y>
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+                            <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Base list</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">9f9029ce-61bd-4190-a4cd-d51eb162d528</item>
+                            <item name="Name" type_name="gh_string" type_code="10">List</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">List</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">e3d7df02-9947-4945-b92e-260496513b93</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                                  <X>307</X>
+                                  <Y>-17264</Y>
+                                  <W>31</W>
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+                                  <X>324</X>
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+                            <item name="Description" type_name="gh_string" type_code="10">Item index</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">095fcf10-e7dd-497f-b9e5-d693bd17e637</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Index</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Index</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">5991d712-24ef-44d2-8c02-082fe655901e</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                            <chunk name="Attributes">
+                              <items count="2">
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+                                  <X>307</X>
+                                  <Y>-17244</Y>
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+                                  <X>324</X>
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+                              <items count="1">
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+                              <chunks count="1">
+                                <chunk name="Branch" index="0">
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+                                    <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                                  </items>
+                                  <chunks count="1">
+                                    <chunk name="Item" index="0">
+                                      <items count="1">
+                                        <item name="number" type_name="gh_int32" type_code="3">0</item>
+                                      </items>
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+                                  </chunks>
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+                          <items count="6">
+                            <item name="Description" type_name="gh_string" type_code="10">Wrap index to list bounds</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">a99c08b3-340b-4b6e-ab19-379748257540</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Wrap</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Wrap</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                          <chunks count="2">
+                            <chunk name="Attributes">
+                              <items count="2">
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+                                  <X>307</X>
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+                                  <X>324</X>
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+                              <items count="1">
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+                                    <item name="Path" type_name="gh_string" type_code="10">{0}</item>
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+                                  <chunks count="1">
+                                    <chunk name="Item" index="0">
+                                      <items count="1">
+                                        <item name="boolean" type_name="gh_bool" type_code="1">false</item>
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+                            <item name="Description" type_name="gh_string" type_code="10">Item at {i'}</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">00f86904-9765-4850-8b33-d56e830392c7</item>
+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Item</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">i</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                          <chunks count="1">
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+                                <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                                  <X>368</X>
+                                  <Y>-17264</Y>
+                                  <W>9</W>
+                                  <H>60</H>
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+                                  <X>374</X>
+                                  <Y>-17234</Y>
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+                    <item name="Name" type_name="gh_string" type_code="10">Series</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Series</item>
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+                      <items count="2">
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+                          <X>284</X>
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+                          <X>350</X>
+                          <Y>-17152</Y>
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+                        <item name="Description" type_name="gh_string" type_code="10">First number in the series</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">c262a4a9-60df-4db3-b69f-c53eb2d53671</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <chunk name="Attributes">
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+                              <X>286</X>
+                              <Y>-17182</Y>
+                              <W>49</W>
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+                              <X>320</X>
+                              <Y>-17172</Y>
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+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
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+                              <chunks count="1">
+                                <chunk name="Item" index="0">
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+                                    <item name="number" type_name="gh_double" type_code="6">1</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Step</item>
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+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>286</X>
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+                              <X>320</X>
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+                        <item name="InternalExpression" type_name="gh_string" type_code="10">X-1</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Count</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Count</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">a77cf5a7-f85d-4322-b9d6-8de5e4d56ab3</item>
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+                              <X>286</X>
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+                              <X>320</X>
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+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
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+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_int32" type_code="3">10</item>
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+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Series of numbers</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">5991d712-24ef-44d2-8c02-082fe655901e</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Series</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Series</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>365</X>
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+                              <X>383.5</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Curve Closest Point</item>
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+                    <item name="NickName" type_name="gh_string" type_code="10">Curve Closest Point</item>
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+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">f73718ec-2984-49a4-a27a-1ac91675f6d1</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Point</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
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+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Point on the curve closest to the base point</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
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+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>375</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Parameter on curve domain of closest point</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Parameter</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Distance</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Distance</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Start Point</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start Point</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">End Point</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Line segment</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Line</item>
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+                              <X>372</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Remap Numbers</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Value to remap</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">39baab36-ddb4-4eb1-a7e0-d829c7a8c5d2</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Value</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Value</item>
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+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">5d06927b-75c6-4328-ac7b-079f70ad223e</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Source domain</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Source</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Numeric Domain between the lowest and highest numbers in {N}</item>
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+                            <item name="Name" type_name="gh_string" type_code="10">A</item>
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+                                  <X>303</X>
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+                            <item name="Name" type_name="gh_string" type_code="10">B</item>
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+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-18468</Y>
+                              <W>67</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>307</X>
+                              <Y>-18458</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="color" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;201;201;201</ARGB>
+                                    </item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Colour of the specular highlight</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">d61acf99-40ab-4c0e-b5fa-46eac0dda1ca</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Specular</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Specular</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-18448</Y>
+                              <W>67</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>307</X>
+                              <Y>-18438</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="color" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;0;255;255</ARGB>
+                                    </item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="2">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Emissive colour of the material</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">2887d662-fcd8-47ab-83a1-34c9f4ab4820</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Emission</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Emission</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-18428</Y>
+                              <W>67</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>307</X>
+                              <Y>-18418</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="color" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;0;0;0</ARGB>
+                                    </item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="3">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Amount of transparency (0.0 = opaque, 1.0 = transparent</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">150c1069-e786-4ce3-8b1a-2457b4290ed4</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Transparency</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Transparency</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-18408</Y>
+                              <W>67</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>307</X>
+                              <Y>-18398</Y>
+                            </item>
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+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">0.5</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="4">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Amount of shinyness (0 = none, 1 = low shine, 100 = max shine</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">808e4911-28ac-4d74-8fe9-98596e4eff21</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Shine</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Shine</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-18388</Y>
+                              <W>67</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>307</X>
+                              <Y>-18378</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_int32" type_code="3">100</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Resulting material</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">5c753fa9-f147-458a-b0fc-bfcd208f3c53</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Material</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>369</X>
+                              <Y>-18468</Y>
+                              <W>43</W>
+                              <H>100</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>392</X>
+                              <Y>-18418</Y>
+                            </item>
+                          </items>
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+                      </chunks>
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+              </chunks>
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+                <item name="GUID" type_name="gh_guid" type_code="9">537b0419-bbc2-4ff4-bf08-afe526367b2c</item>
+                <item name="Name" type_name="gh_string" type_code="10">Custom Preview</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="6">
+                    <item name="Description" type_name="gh_string" type_code="10">Allows for customized geometry previews</item>
+                    <item name="IncludeInRender" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">8a08b6b8-cfea-4d31-a7c8-f692c4e3e123</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Custom Preview</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Custom Preview</item>
+                    <item name="ViewportFilter" type_name="gh_string" type_code="10"></item>
+                  </items>
+                  <chunks count="3">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>301</X>
+                          <Y>-18541</Y>
+                          <W>82</W>
+                          <H>44</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>369</X>
+                          <Y>-18519</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="param_input" index="0">
+                      <items count="8">
+                        <item name="Description" type_name="gh_string" type_code="10">Geometry to preview</item>
+                        <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">44e54642-198c-4447-90c1-e58a5e0c4751</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Geometry</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Geometry</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">05c0ca83-e9c2-4a1f-a8da-0a1fc8b56a58</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>303</X>
+                              <Y>-18539</Y>
+                              <W>51</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>330</X>
+                              <Y>-18529</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">The material override</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">81b3ddb6-28e1-421c-89e5-14c95aa0a488</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Material</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">5c753fa9-f147-458a-b0fc-bfcd208f3c53</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>303</X>
+                              <Y>-18519</Y>
+                              <W>51</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>330</X>
+                              <Y>-18509</Y>
+                            </item>
+                          </items>
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+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="5">
+                                    <item name="diffuse" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;221;160;221</ARGB>
+                                    </item>
+                                    <item name="emission" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;66;48;66</ARGB>
+                                    </item>
+                                    <item name="shine" type_name="gh_double" type_code="6">0.5</item>
+                                    <item name="specular" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;255;255;255</ARGB>
+                                    </item>
+                                    <item name="transparency" type_name="gh_double" type_code="6">0</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
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+                  </chunks>
+                </chunk>
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+                <item name="GUID" type_name="gh_guid" type_code="9">6b021f56-b194-4210-b9a1-6cef3b7d0848</item>
+                <item name="Name" type_name="gh_string" type_code="10">Evaluate Length</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="5">
+                    <item name="Description" type_name="gh_string" type_code="10">Evaluate a curve at a certain factor along its length. Length factors can be supplied both in curve units and normalized units. Change the [N] parameter to toggle between the two modes.</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">d82697e4-46d7-40a6-a634-ab99e39a33a3</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Evaluate Length</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Evaluate Length</item>
+                  </items>
+                  <chunks count="7">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>270</X>
+                          <Y>-18629</Y>
+                          <W>144</W>
+                          <H>64</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>344</X>
+                          <Y>-18597</Y>
+                        </item>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve to evaluate</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">cf870870-3dfe-4a0a-b235-67b51ba0ce79</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">05c0ca83-e9c2-4a1f-a8da-0a1fc8b56a58</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-18627</Y>
+                              <W>57</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302</X>
+                              <Y>-18617</Y>
+                            </item>
+                          </items>
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+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Length factor for curve evaluation</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">140ac407-8e02-4fa4-8e8e-06e20930c7ca</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
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+                              <X>272</X>
+                              <Y>-18607</Y>
+                              <W>57</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302</X>
+                              <Y>-18597</Y>
+                            </item>
+                          </items>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">1</item>
+                                  </items>
+                                </chunk>
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+                          </chunks>
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+                    </chunk>
+                    <chunk name="param_input" index="2">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">If True, the Length factor is normalized (0.0 ~ 1.0)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">e4566892-fdbe-440a-9b87-f823aedf12ea</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Normalized</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Normalized</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
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+                <item name="Name" type_name="gh_string" type_code="10">Explode</item>
+              </items>
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+                <chunk name="Container">
+                  <items count="5">
+                    <item name="Description" type_name="gh_string" type_code="10">Explode a curve into smaller segments.</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
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+                    <item name="NickName" type_name="gh_string" type_code="10">Explode</item>
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+                      <items count="2">
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+                          <X>274</X>
+                          <Y>-19064</Y>
+                          <W>136</W>
+                          <H>44</H>
+                        </item>
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+                          <X>341</X>
+                          <Y>-19042</Y>
+                        </item>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve to explode</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>276</X>
+                              <Y>-19062</Y>
+                              <W>50</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302.5</X>
+                              <Y>-19052</Y>
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+                      </chunks>
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+                    <chunk name="param_input" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Recursive decomposition until all segments are atomic</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">58df35bc-a9cb-4a8e-84d3-12c49dc1e00d</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Recursive</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Recursive</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <chunk name="Attributes">
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+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>276</X>
+                              <Y>-19042</Y>
+                              <W>50</W>
+                              <H>20</H>
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+                              <X>302.5</X>
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="boolean" type_name="gh_bool" type_code="1">true</item>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Exploded segments that make up the base curve</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">bbb31210-922a-4177-97ef-c991d02c2475</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Segments</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Segments</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>356</X>
+                              <Y>-19062</Y>
+                              <W>52</W>
+                              <H>20</H>
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+                              <X>383.5</X>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Vertices of the exploded segments</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">15ad7498-a54e-42ed-b182-d97342cb0ff2</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Vertices</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Vertices</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                              <X>356</X>
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+                              <X>383.5</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Evaluate Length</item>
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+                          <X>270</X>
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+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
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+                                    <item name="number" type_name="gh_double" type_code="6">0.5</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">If True, the Length factor is normalized (0.0 ~ 1.0)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">7ef95c60-1aab-4d8e-a612-3d6541a72593</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Normalized</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Normalized</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                              <X>272</X>
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+                              <X>302</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Point at the specified length</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Point</item>
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+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
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+                              <X>387</X>
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+                        <item name="Description" type_name="gh_string" type_code="10">Tangent vector at the specified length</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Tangent</item>
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+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Curve parameter at the specified length</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Parameter</item>
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+                              <X>387</X>
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+                <item name="Name" type_name="gh_string" type_code="10">Line SDL</item>
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+                          <X>281</X>
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+                          <X>361</X>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Line start point</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">235915f2-43c3-4c9f-9266-a65576ebc638</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Start</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Start</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>283</X>
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+                              <X>324</X>
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+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Line tangent (direction)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">b306269a-5789-4b4a-bc77-b71cb8c8add7</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Direction</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Direction</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">2bdf03c9-c90c-47eb-b95b-994edbac4619</item>
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+                              <X>324</X>
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+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="vector" type_name="gh_point3d" type_code="51">
+                                      <X>0</X>
+                                      <Y>0</Y>
+                                      <Z>1</Z>
+                                    </item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="2">
+                      <items count="8">
+                        <item name="Description" type_name="gh_string" type_code="10">Line length</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">e2ab6fc2-2fb3-48af-a4f6-bc902a09e8a0</item>
+                        <item name="InternalExpression" type_name="gh_string" type_code="10">ABS(X)</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">a18d80dc-6009-474f-8faa-5c039416c174</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>283</X>
+                              <Y>-20738</Y>
+                              <W>63</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>324</X>
+                              <Y>-20728</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">0.015625</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Line segment</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">51c10d90-2eef-4df6-9928-ad6d1e997c16</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Line</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Line</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>376</X>
+                              <Y>-20778</Y>
+                              <W>25</W>
+                              <H>60</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>390</X>
+                              <Y>-20748</Y>
+                            </item>
+                          </items>
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+                      </chunks>
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+                  </chunks>
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+              </chunks>
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+                <item name="Name" type_name="gh_string" type_code="10">Relative Differences</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="4">
+                    <item name="Description" type_name="gh_string" type_code="10">Compute relative differences for a list of data</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">620a8ca8-c287-44ab-a5e8-6a0fdafdcb8f</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Relative Differences</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Relative Differences</item>
+                  </items>
+                  <chunks count="3">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>278</X>
+                          <Y>-19490</Y>
+                          <W>128</W>
+                          <H>28</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>331</X>
+                          <Y>-19476</Y>
+                        </item>
+                      </items>
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+                      <items count="8">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">List of data to operate on (numbers or points or vectors allowed)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">126a93bd-3179-428a-a206-80c028749e66</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Values</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Values</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">c1c49636-f529-4721-8847-a2a98a304cca</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>280</X>
+                              <Y>-19488</Y>
+                              <W>36</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>299.5</X>
+                              <Y>-19476</Y>
+                            </item>
+                          </items>
+                        </chunk>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Differences between consecutive items</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">f1bc045e-92be-4ec6-bde7-2c37f98cbe0d</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Differenced</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Differenced</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>346</X>
+                              <Y>-19488</Y>
+                              <W>58</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>376.5</X>
+                              <Y>-19476</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
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+                  </chunks>
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+              </chunks>
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+                <item name="Name" type_name="gh_string" type_code="10">Replace Nulls</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="5">
+                    <item name="Description" type_name="gh_string" type_code="10">Replace nulls or invalid data with other data</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">cd5b622f-1f7c-4975-a02e-208ae694b329</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Replace Nulls</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Replace Nulls</item>
+                  </items>
+                  <chunks count="5">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>274</X>
+                          <Y>-19434</Y>
+                          <W>136</W>
+                          <H>44</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>360</X>
+                          <Y>-19412</Y>
+                        </item>
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+                      <items count="8">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Items to test for null</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">bc266c4e-3be6-4f8f-82f1-113e019f3902</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Items</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Items</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">0b154a8a-be06-4d46-8111-969ceee58d2a</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>276</X>
+                              <Y>-19432</Y>
+                              <W>69</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>312</X>
+                              <Y>-19422</Y>
+                            </item>
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+                      <items count="7">
+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Items to replace nulls with</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">8c1e4dbf-f693-44eb-adff-136202d08f7c</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Replacements</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Replacements</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>276</X>
+                              <Y>-19412</Y>
+                              <W>69</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>312</X>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="2">
+                                    <item name="TypeName" type_name="gh_string" type_code="10">Grasshopper.Kernel.Types.GH_Integer</item>
+                                    <item name="number" type_name="gh_int32" type_code="3">0</item>
+                                  </items>
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+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">List without any nulls</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">c1c49636-f529-4721-8847-a2a98a304cca</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Items</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Items</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>375</X>
+                              <Y>-19432</Y>
+                              <W>33</W>
+                              <H>20</H>
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+                              <X>393</X>
+                              <Y>-19422</Y>
+                            </item>
+                          </items>
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+                        <item name="Description" type_name="gh_string" type_code="10">Number of items replaced</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">26ba2578-7cb6-4ab3-bbb1-ff11c3a10092</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Count</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Count</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>375</X>
+                              <Y>-19412</Y>
+                              <W>33</W>
+                              <H>20</H>
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+                              <X>393</X>
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+                <item name="Name" type_name="gh_string" type_code="10">List Length</item>
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+                    <item name="Name" type_name="gh_string" type_code="10">List Length</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">List Length</item>
+                  </items>
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+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>296</X>
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+                          <X>335</X>
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+                        <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                        <item name="Description" type_name="gh_string" type_code="10">Base list</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">3ed54178-17f0-4437-a38f-ec1311f2f459</item>
+                        <item name="Name" type_name="gh_string" type_code="10">List</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">List</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">f1bc045e-92be-4ec6-bde7-2c37f98cbe0d</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>298</X>
+                              <Y>-19537</Y>
+                              <W>22</W>
+                              <H>24</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>310.5</X>
+                              <Y>-19525</Y>
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+                          </items>
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+                        <item name="Description" type_name="gh_string" type_code="10">Number of items in L</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">d5cbcd51-2617-4372-8c2b-9bfb149a191e</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>350</X>
+                              <Y>-19537</Y>
+                              <W>37</W>
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+                            </item>
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+                              <X>370</X>
+                              <Y>-19525</Y>
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+                    <item name="BaseOutputIndex" type_name="gh_int32" type_code="3">0</item>
+                    <item name="Description" type_name="gh_string" type_code="10">Retrieve a specific item from a list.</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">ebee8826-ae1a-4f18-a9ee-22b9f289422b</item>
+                    <item name="Name" type_name="gh_string" type_code="10">List Item</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">List Item</item>
+                  </items>
+                  <chunks count="2">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>305</X>
+                          <Y>-19702</Y>
+                          <W>74</W>
+                          <H>64</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>353</X>
+                          <Y>-19670</Y>
+                        </item>
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+                            <item name="Access" type_name="gh_int32" type_code="3">1</item>
+                            <item name="Description" type_name="gh_string" type_code="10">Base list</item>
+                            <item name="InstanceGuid" type_name="gh_guid" type_code="9">ca7b7357-74e0-454e-8b44-f47240141bcc</item>
+                            <item name="Name" type_name="gh_string" type_code="10">List</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">List</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">f1bc045e-92be-4ec6-bde7-2c37f98cbe0d</item>
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+                                  <X>307</X>
+                                  <Y>-19700</Y>
+                                  <W>31</W>
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+                                  <X>324</X>
+                                  <Y>-19690</Y>
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+                            <item name="Name" type_name="gh_string" type_code="10">Index</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Index</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Source" index="0" type_name="gh_guid" type_code="9">63bbba8b-41ee-476d-8774-871770273910</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                            <chunk name="Attributes">
+                              <items count="2">
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+                                  <X>307</X>
+                                  <Y>-19680</Y>
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+                                    <item name="Path" type_name="gh_string" type_code="10">{0}</item>
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+                            <item name="Name" type_name="gh_string" type_code="10">Wrap</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">Wrap</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                          <chunks count="2">
+                            <chunk name="Attributes">
+                              <items count="2">
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+                                  <X>307</X>
+                                  <Y>-19660</Y>
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+                            <item name="Description" type_name="gh_string" type_code="10">Item at {i'}</item>
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+                            <item name="Mutable" type_name="gh_bool" type_code="1">false</item>
+                            <item name="Name" type_name="gh_string" type_code="10">Item</item>
+                            <item name="NickName" type_name="gh_string" type_code="10">i</item>
+                            <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                            <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                          <chunks count="1">
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+                                  <X>368</X>
+                                  <Y>-19700</Y>
+                                  <W>9</W>
+                                  <H>60</H>
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+                                  <X>374</X>
+                                  <Y>-19670</Y>
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+                    <item name="Name" type_name="gh_string" type_code="10">Series</item>
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+                          <X>350</X>
+                          <Y>-19588</Y>
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+                        <item name="Name" type_name="gh_string" type_code="10">Start</item>
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+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>286</X>
+                              <Y>-19618</Y>
+                              <W>49</W>
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+                              <X>320</X>
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+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
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+                                <chunk name="Item" index="0">
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+                                    <item name="number" type_name="gh_double" type_code="6">1</item>
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+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <item name="NickName" type_name="gh_string" type_code="10">Count</item>
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+                              <X>286</X>
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+                        <item name="Name" type_name="gh_string" type_code="10">Series</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Series</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
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+                        <item name="Description" type_name="gh_string" type_code="10">Point on the curve closest to the base point</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Distance</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Start Point</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">End Point</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Line</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Value</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Source</item>
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+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">3a63bd4a-884e-49d5-be8b-a4be3f9aaf7b</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Specular</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Specular</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-20884</Y>
+                              <W>67</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>307</X>
+                              <Y>-20874</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="color" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;0;255;255</ARGB>
+                                    </item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="2">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Emissive colour of the material</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">c31fe638-0bd8-4083-b768-d182f56ca0bb</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Emission</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Emission</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-20864</Y>
+                              <W>67</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>307</X>
+                              <Y>-20854</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="color" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;0;0;0</ARGB>
+                                    </item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="3">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Amount of transparency (0.0 = opaque, 1.0 = transparent</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">0b9d9784-eb36-46b9-a2bc-65cebb995139</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Transparency</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Transparency</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-20844</Y>
+                              <W>67</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>307</X>
+                              <Y>-20834</Y>
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+                          </items>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">0.5</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="4">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Amount of shinyness (0 = none, 1 = low shine, 100 = max shine</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">32915392-a277-47dc-a554-f21037e16801</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Shine</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Shine</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-20824</Y>
+                              <W>67</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>307</X>
+                              <Y>-20814</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_int32" type_code="3">100</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Resulting material</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">b8e65833-9edb-43b0-812f-150818de890b</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Material</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>369</X>
+                              <Y>-20904</Y>
+                              <W>43</W>
+                              <H>100</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>392</X>
+                              <Y>-20854</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
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+                  </chunks>
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+              </chunks>
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+            <chunk name="Object" index="304">
+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">537b0419-bbc2-4ff4-bf08-afe526367b2c</item>
+                <item name="Name" type_name="gh_string" type_code="10">Custom Preview</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="6">
+                    <item name="Description" type_name="gh_string" type_code="10">Allows for customized geometry previews</item>
+                    <item name="IncludeInRender" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">125a90c4-4b50-42f7-baa6-b98a39142fe7</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Custom Preview</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Custom Preview</item>
+                    <item name="ViewportFilter" type_name="gh_string" type_code="10"></item>
+                  </items>
+                  <chunks count="3">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>301</X>
+                          <Y>-20977</Y>
+                          <W>82</W>
+                          <H>44</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>369</X>
+                          <Y>-20955</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="param_input" index="0">
+                      <items count="8">
+                        <item name="Description" type_name="gh_string" type_code="10">Geometry to preview</item>
+                        <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">c5f7265e-68b6-44f6-a347-35e24e11d826</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Geometry</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Geometry</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">51c10d90-2eef-4df6-9928-ad6d1e997c16</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="1">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>303</X>
+                              <Y>-20975</Y>
+                              <W>51</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>330</X>
+                              <Y>-20965</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">The material override</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">bf936fc6-4b8b-43d0-88bd-4b9b137207af</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Material</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Material</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">b8e65833-9edb-43b0-812f-150818de890b</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>303</X>
+                              <Y>-20955</Y>
+                              <W>51</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>330</X>
+                              <Y>-20945</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                        <chunk name="PersistentData">
+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
+                            <chunk name="Branch" index="0">
+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="5">
+                                    <item name="diffuse" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;221;160;221</ARGB>
+                                    </item>
+                                    <item name="emission" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;66;48;66</ARGB>
+                                    </item>
+                                    <item name="shine" type_name="gh_double" type_code="6">0.5</item>
+                                    <item name="specular" type_name="gh_drawing_color" type_code="36">
+                                      <ARGB>255;255;255;255</ARGB>
+                                    </item>
+                                    <item name="transparency" type_name="gh_double" type_code="6">0</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                  </chunks>
+                </chunk>
+              </chunks>
+            </chunk>
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+              <items count="2">
+                <item name="GUID" type_name="gh_guid" type_code="9">6b021f56-b194-4210-b9a1-6cef3b7d0848</item>
+                <item name="Name" type_name="gh_string" type_code="10">Evaluate Length</item>
+              </items>
+              <chunks count="1">
+                <chunk name="Container">
+                  <items count="5">
+                    <item name="Description" type_name="gh_string" type_code="10">Evaluate a curve at a certain factor along its length. Length factors can be supplied both in curve units and normalized units. Change the [N] parameter to toggle between the two modes.</item>
+                    <item name="Hidden" type_name="gh_bool" type_code="1">true</item>
+                    <item name="InstanceGuid" type_name="gh_guid" type_code="9">2b46cbef-a32d-463e-96ca-067d7d608ef1</item>
+                    <item name="Name" type_name="gh_string" type_code="10">Evaluate Length</item>
+                    <item name="NickName" type_name="gh_string" type_code="10">Evaluate Length</item>
+                  </items>
+                  <chunks count="7">
+                    <chunk name="Attributes">
+                      <items count="2">
+                        <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                          <X>270</X>
+                          <Y>-21065</Y>
+                          <W>144</W>
+                          <H>64</H>
+                        </item>
+                        <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                          <X>344</X>
+                          <Y>-21033</Y>
+                        </item>
+                      </items>
+                    </chunk>
+                    <chunk name="param_input" index="0">
+                      <items count="7">
+                        <item name="Description" type_name="gh_string" type_code="10">Curve to evaluate</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">bba313fe-5f5a-4b08-8e7a-7e5499b793ba</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Curve</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="Source" index="0" type_name="gh_guid" type_code="9">51c10d90-2eef-4df6-9928-ad6d1e997c16</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">1</item>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-21063</Y>
+                              <W>57</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302</X>
+                              <Y>-21053</Y>
+                            </item>
+                          </items>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="1">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Length factor for curve evaluation</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">ce6caa65-5494-4bf8-ba46-4e0c18cbaf34</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Length</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Length</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
+                      <chunks count="2">
+                        <chunk name="Attributes">
+                          <items count="2">
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+                              <X>272</X>
+                              <Y>-21043</Y>
+                              <W>57</W>
+                              <H>20</H>
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+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302</X>
+                              <Y>-21033</Y>
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+                          </items>
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+                          <items count="1">
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+                          </items>
+                          <chunks count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="number" type_name="gh_double" type_code="6">1</item>
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+                                </chunk>
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+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_input" index="2">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">If True, the Length factor is normalized (0.0 ~ 1.0)</item>
+                        <item name="InstanceGuid" type_name="gh_guid" type_code="9">2734effe-00cb-4535-83b3-aedfe21c008b</item>
+                        <item name="Name" type_name="gh_string" type_code="10">Normalized</item>
+                        <item name="NickName" type_name="gh_string" type_code="10">Normalized</item>
+                        <item name="Optional" type_name="gh_bool" type_code="1">false</item>
+                        <item name="SourceCount" type_name="gh_int32" type_code="3">0</item>
+                      </items>
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+                        <chunk name="Attributes">
+                          <items count="2">
+                            <item name="Bounds" type_name="gh_drawing_rectanglef" type_code="35">
+                              <X>272</X>
+                              <Y>-21023</Y>
+                              <W>57</W>
+                              <H>20</H>
+                            </item>
+                            <item name="Pivot" type_name="gh_drawing_pointf" type_code="31">
+                              <X>302</X>
+                              <Y>-21013</Y>
+                            </item>
+                          </items>
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+                          <items count="1">
+                            <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                          </items>
+                          <chunks count="1">
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+                              <items count="2">
+                                <item name="Count" type_name="gh_int32" type_code="3">1</item>
+                                <item name="Path" type_name="gh_string" type_code="10">{0}</item>
+                              </items>
+                              <chunks count="1">
+                                <chunk name="Item" index="0">
+                                  <items count="1">
+                                    <item name="boolean" type_name="gh_bool" type_code="1">true</item>
+                                  </items>
+                                </chunk>
+                              </chunks>
+                            </chunk>
+                          </chunks>
+                        </chunk>
+                      </chunks>
+                    </chunk>
+                    <chunk name="param_output" index="0">
+                      <items count="6">
+                        <item name="Description" type_name="gh_string" type_code="10">Point at the specified length</item>
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+                        <item name="Name" type_name="gh_string" type_code="10">Domain</item>
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+                              <X>384</X>
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+                                    <item name="color" type_name="gh_drawing_color" type_code="36">
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\ No newline at end of file