code: async def get_data(self, *,
                         chat: typing.Union[str, int, None] = None,
                         user: typing.Union[str, int, None] = None,
                         default: typing.Optional[typing.Dict] = None) -> typing.Dict:
          
          raise NotImplementedError
docs: Get state-data for user in chat. Return `default` if no data is provided in storage.
  
          Chat or user is always required. If one of them is not provided,
          you have to set missing value based on the provided one.
  
          :param chat:
          :param user:
          :param default:
          :return: