code: async def message_from_token(self, token: Text, payload: Any) \
              -> Tuple[Optional[BaseMessage], Optional[Platform]]:
          
  
          async for platform in self.get_all_platforms():
              m = await platform.message_from_token(token, payload)
  
              if m:
                  return m, platform
  
          return None, None
docs: Given an authentication token, find the right platform that can
          recognize this token and create a message for this platform.
  
          The payload will be inserted into a Postback layer.