text: 
  from typing import TYPE_CHECKING, TypeVar
  
  if TYPE_CHECKING:
      from aionetworking.formats.protocols import MessageObject, Codec
      from aionetworking.formats.contrib.json import JSONObject
  
  
  MessageObjectType = TypeVar('MessageObjectType', bound='MessageObject')
  CodecType = TypeVar('CodecType', bound='Codec')
  JSONObjectType = TypeVar('JSONObjectType', bound='JSONObject')