def callLater(self, value):
        """
        Sets the value for the C{callLater} callback. This callback is used by
        the L{twisted.protocols.policies.TimeoutMixin} to handle timeouts.

        @param value: The new callback to use.
        @type value: L{callable}
        """
        self._callLater = value
        self._channel.callLater = value

        Sets the value for the C{callLater} callback. This callback is used by
        the L{twisted.protocols.policies.TimeoutMixin} to handle timeouts.

        @param value: The new callback to use.
        @type value: L{callable}
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/web/http.py