code: async def finish(self, expected_codes="2xx", wait_codes="1xx"):
          
          self.close()
          await self.client.command(None, expected_codes, wait_codes)
docs: :py:func:`asyncio.coroutine`
  
          Close connection and wait for `expected_codes` response from server
          passing `wait_codes`.
  
          :param expected_codes: tuple of expected codes or expected code
          :type expected_codes: :py:class:`tuple` of :py:class:`str` or
              :py:class:`str`
  
          :param wait_codes: tuple of wait codes or wait code
          :type wait_codes: :py:class:`tuple` of :py:class:`str` or
              :py:class:`str`