Update according to the comments.

src/agentscope/agents/dialog_agent.py

@@ -41,9 +41,10 @@ def __init__(
             use_memory=use_memory,
         )
 
-        logger.warning(
-            f"Unused keyword arguments is provided: {kwargs}",
-        )
+        if kwargs:
+            logger.warning(
+                f"Unused keyword arguments are provided: {kwargs}",
+            )
 
     def reply(self, x: Optional[Union[Msg, Sequence[Msg]]] = None) -> Msg:
         """Reply function of the agent. Processes the input data,

src/agentscope/memory/temporary_memory.py

@@ -82,7 +82,7 @@ def add(
             #  type error
             if isinstance(memory_unit, PlaceholderMessage):
                 memory_unit.update_value()
-                memory_unit = Msg.from_dict(memory_unit.serialize())
+                memory_unit = Msg.from_dict(memory_unit.to_dict())
 
             if not isinstance(memory_unit, Msg):
                 raise ValueError(

src/agentscope/message/msg.py

@@ -228,8 +228,9 @@ def formatted_str(self, colored: bool = False) -> str:
                 colored_strs.append(f"{name}: {self.url}")
         return "\n".join(colored_strs)
 
-    def serialize(self) -> dict:
-        """Return the serialized message.
+    def to_dict(self) -> dict:
+        """Serialize the message into a dictionary, which can be
+        deserialized by calling the `from_dict` function.
 
         Returns:
             `dict`: The serialized dictionary.

src/agentscope/message/placeholder.py

@@ -257,7 +257,7 @@ def __update_task_id(self) -> None:
             self._task_id = task_id
             self._stub = None
 
-    def serialize(self) -> dict:
+    def to_dict(self) -> dict:
         """Serialize the placeholder message."""
         if self._is_placeholder:
             self.__update_task_id()

src/agentscope/serialize.py

@@ -13,13 +13,13 @@ def _default_serialize(obj: Any) -> Any:
             obj.__module__ == "agentscope.message.msg"
             and obj.__class__.__name__ == "Msg"
         ):
-            return obj.serialize()
+            return obj.to_dict()
 
         if (
             obj.__module__ == "agentscope.message.placeholder"
             and obj.__class__.__name__ == "PlaceholderMessage"
         ):
-            return obj.serialize()
+            return obj.to_dict()
 
     return obj
 

tests/message_test.py

@@ -33,7 +33,7 @@ def test_formatted_msg(self) -> None:
     def test_serialize(self) -> None:
         """Test the serialization and deserialization of Msg object."""
         msg = Msg(name="A", content="B", role="assistant")
-        serialized_msg = msg.serialize()
+        serialized_msg = msg.to_dict()
         deserialized_msg = Msg.from_dict(serialized_msg)
         self.assertEqual(msg.id, deserialized_msg.id)
         self.assertEqual(msg.name, deserialized_msg.name)