code: def _process_message(self, message):
      raise NotImplementedError()
  
file_path: neptune-client/src/neptune/legacy/internal/websockets/websocket_message_processor.py
imports: import json
  from neptune.legacy.internal.websockets.message import Message
label_desc: Use image node_id 3 for calling the WebsocketMessageProcessor obj's underlying member method code with example usage: obj._process_message(message) without return types