def __init__(self, start_response_callable):
self.start = start_response_callable<EOL>self.status = <NUM_LIT:200><EOL>self.media_type = '<STR_LIT>'<EOL>self.charset = '<STR_LIT>'<EOL>self._headers = []<EOL>self.body = None<EOL>self.state = {}<EOL>
Initialize the current response object.

        Arguments:
          start_response_callable (callable): Callable that starts response.