diff --git a/README.md b/README.md
index 466adab..44b6f79 100644
--- a/README.md
+++ b/README.md
@@ -81,10 +81,18 @@ Trigger the start of the Conversation in anyway you like with `conversation.Play
 
 ## Functions
 
-Topiary can call external functions that are marked with the `Topi` attribute. Here's some examples:
+Topiary can call external functions that are marked with the `Topi` attribute.
+
+Any **static** function with `IntPtr, byte` arguments and return type `TopiValue` is valid.
+Originally functions were wrapped and allowed for `TopiValue` arguments to hide the IntPtr
+and CreateArgs requirements, however Unity (the main use case for this package) will not work
+with this work flow. So a more manual approcate is required.
+
+`MonoPInvokeCallback` is also required by Unity.
+
+Here's some examples:
 
 ```csharp
-// Preserve used to make sure Unity doesn't strip these functions from your build
 public static class DialogueFunctions
 {
     // playAnim will be replaced with the C# method
@@ -151,10 +159,11 @@ value.Bool // true
 
 ## EvtVariables
 
-I've made [EvtVariables](https://github.com/peartreegames/evt-variables) the scriptableobject event system architecture a dependency of this package, though isn't actually necessary a lot of my tools use it. 
+I've made [EvtVariables](https://github.com/peartreegames/evt-variables) the scriptableobject event system architecture a dependency of this package, 
+though isn't actually necessary a lot of my tools use it. 
 If you prefer not to keep it, please feel free to fork this repo and remove it.
 
-EvtVariables are extents as EvtTopiVariables and used as runtime variable containers for any .topi `extern` variable.
+EvtVariables are extended as EvtTopiVariables and used as runtime variable containers for any .topi `extern` variable.
 
 Create one with `ContextMenu > Create > Evt > Topiary > [Type]`
 
diff --git a/Topiary.CSharp.dll b/Topiary.CSharp.dll
index 51f3e86..d01366d 100644
Binary files a/Topiary.CSharp.dll and b/Topiary.CSharp.dll differ
diff --git a/Topiary.CSharp.pdb b/Topiary.CSharp.pdb
index 3dd93be..4aed9d7 100644
Binary files a/Topiary.CSharp.pdb and b/Topiary.CSharp.pdb differ
diff --git a/package.json b/package.json
index e01b19e..8f34607 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "com.peartreegames.topiaryunity",
-  "version": "0.13.1",
+  "version": "0.13.2",
   "displayName": "Topiary.Unity",
   "description": "Topiary Dialogue Runner for Unity",
   "unity": "2022.3",