update

Author: Wendong-Fan

camel/toolkits/function_tool.py

@@ -144,6 +144,7 @@ def _create_mol(name, field):
         return create_model(name, **field)
 
     model = _create_mol(to_pascal(func.__name__), fields)
+    model.model_rebuild()
     parameters_dict = get_pydantic_object_schema(model)
 
     # The `"title"` is generated by `model.model_json_schema()`

camel/utils/mcp.py

@@ -78,7 +78,10 @@ def _is_pydantic_serializable(type_annotation: Any) -> Tuple[bool, str]:
 
     # Try to create a simple pydantic model with this type
     try:
-        create_model("TestModel", test_field=(type_annotation, ...))
+        test_model = create_model(
+            "TestModel", test_field=(type_annotation, ...)
+        )
+        test_model.model_rebuild()
         # If model creation succeeds, the type is serializable
         return True, ""
     except (PydanticSchemaGenerationError, TypeError, ValueError) as e: