revert!: revert removed fixes for attrs (#974)

* return back fix

* return back Delta fix

* make check like Delta

* Update attrs_utils.py

Author: Damego

interactions/api/models/attrs_utils.py

@@ -50,9 +50,23 @@ def __init__(self, kwargs_dict: dict = None, /, **other_kwargs):
                     if value is not None and attrib.metadata.get("add_client"):
                         if isinstance(value, list):
                             for item in value:
-                                item["_client"] = client
+                                if isinstance(item, dict):
+                                    item["_client"] = client
+                                elif isinstance(item, DictSerializerMixin):
+                                    item._client = client
                         else:
-                            value["_client"] = client
+                            if isinstance(value, dict):
+                                value["_client"] = client
+                            elif isinstance(value, DictSerializerMixin):
+                                value._client = client
+
+                    # make sure json is recursively handled
+                    if isinstance(value, list):
+                        self._json[attrib_name] = [
+                            i._json if isinstance(i, DictSerializerMixin) else i for i in value
+                        ]
+                    elif isinstance(value, DictSerializerMixin):
+                        self._json[attrib_name] = value._json  # type: ignore
 
                     passed_kwargs[attrib_name] = value