code: def serialize(self, element: bytes, stream: BytesIO) -> None:
      pass
  
file_path: flink/flink-python/pyflink/common/serializer.py
imports: from abc import abstractmethod, ABC
  from io import BytesIO
  from typing import TypeVar, Generic
label_desc: Use image node_id 1 for calling the VoidNamespaceSerializer obj's underlying member method code with example usage: obj.serialize(element, stream) without return types