def _proxy(self):
        """
        Generate an instance context for the instance, the context is capable of
        performing various actions.  All instance actions are proxied to the context

        :returns: FaxMediaContext for this FaxMediaInstance
        :rtype: twilio.rest.fax.v1.fax.fax_media.FaxMediaContext
        """
        if self._context is None:
            self._context = FaxMediaContext(
                self._version,
                fax_sid=self._solution['fax_sid'],
                sid=self._solution['sid'],
            )
        return self._context