fix: cli runtime output serialization

src/uipath_langchain/_cli/_runtime/_output.py

@@ -145,11 +145,9 @@ def serialized_output(self) -> Dict[str, Any]:
         try:
             if self.context.output is None:
                 return {}
-            if hasattr(self.context.output, "dict"):
-                return self.context.output.dict()
-            elif hasattr(self.context.output, "to_dict"):
-                return self.context.output.to_dict()
-            return dict(self.context.output)
+
+            return self._serialize_object(self.context.output)
+
         except Exception as e:
             raise LangGraphRuntimeError(
                 "OUTPUT_SERIALIZATION_FAILED",
@@ -158,6 +156,31 @@ def serialized_output(self) -> Dict[str, Any]:
                 UiPathErrorCategory.SYSTEM,
             ) from e
 
+    def _serialize_object(self, obj):
+        """Recursively serializes an object and all its nested components."""
+        # Handle Pydantic models
+        if hasattr(obj, "dict"):
+            return self._serialize_object(obj.dict())
+        elif hasattr(obj, "model_dump"):
+            return self._serialize_object(obj.model_dump(by_alias=True))
+        elif hasattr(obj, "to_dict"):
+            return self._serialize_object(obj.to_dict())
+        # Handle dictionaries
+        elif isinstance(obj, dict):
+            return {k: self._serialize_object(v) for k, v in obj.items()}
+        # Handle lists
+        elif isinstance(obj, list):
+            return [self._serialize_object(item) for item in obj]
+        # Handle other iterable objects (convert to dict first)
+        elif hasattr(obj, "__iter__") and not isinstance(obj, (str, bytes)):
+            try:
+                return self._serialize_object(dict(obj))
+            except (TypeError, ValueError):
+                return obj
+        # Return primitive types as is
+        else:
+            return obj
+
     async def process(self) -> UiPathRuntimeResult:
         """
         Process the output and prepare the final execution result.