Update README

Author: mos9527

README.md

@@ -8,9 +8,9 @@ General purpose [Live2D](https://www.live2d.com/) Asset recovery tool built w/ [
 As the name suggests, this project is heavily inspired by [Perfare/UnityLive2DExtractor](https://github.com/Perfare/UnityLive2DExtractor). With a few key differences:
 - All Live2D types are implemented with [dumped TypeTree](https://github.com/mos9527/UnityPyLive2DExtractor/blob/main/external/typetree_cubism.json) and [generated types](https://github.com/mos9527/UnityPyLive2DExtractor/blob/main/typetree_codegen.py). This should help with compatibility issues.
     - Do note, however, that you may need to update the TypeTree if the Live2D version changes.
-    - Generate the TypeTree with [typetree_codegen](https://github.com/mos9527/UnityPyLive2DExtractor/blob/main/typetree_codegen.py) and replace the existing TypeTree at `UnityPyLive2DExtractor/generated`
+    - Generate the TypeTree with [UnityPyTypetreeCodegen](https://github.com/mos9527/UnityPyTypetreeCodegen) and replace the existing TypeTree at `UnityPyLive2DExtractor/generated`
     ```bash
-    python typetree_codegen.py type_tree_cubism.json UnityPyLive2DExtractor/generated
+    UnityPyTypetreeCodegen --json external/typetree_cubism.json --outdir UnityPyLive2DExtractor/generated
     ```
 - New (not necessarily better) asset discovery method. Though proven to be more reliable in some cases.
 

UnityPyLive2DExtractor/generated/__init__.py

@@ -29,12 +29,12 @@ def reduce_init(clazz, **d):
                     reduce_arg = getattr(sub, "__args__", [None])[0]
                     if k in REFERENCED_ARGS: # Directly refcounted
                         reduce_arg = sub = lambda x: x                         
-                    if isinstance(d[k], list):
+                    if reduce_arg is not None and isinstance(d[k], list):
                         if hasattr(reduce_arg, "__annotations__"):
                             setattr(self, k, [reduce_arg(**x) for x in d[k]])
                         else:
                             setattr(self, k, [reduce_arg(x) for x in d[k]])
-                    elif isinstance(d[k], dict) and hasattr(sub, "__annotations__"):
+                    elif reduce_arg is not None and isinstance(d[k], dict) and hasattr(sub, "__annotations__"):
                         setattr(self, k, sub(**d[k]))
                     else:
                         if isinstance(d[k], dict):