code: def get_instance(self, payload):
          
          return FaxMediaInstance(self._version, payload, fax_sid=self._solution['fax_sid'], )
docs: Build an instance of FaxMediaInstance
  
          :param dict payload: Payload response from the API
  
          :returns: twilio.rest.fax.v1.fax.fax_media.FaxMediaInstance
          :rtype: twilio.rest.fax.v1.fax.fax_media.FaxMediaInstance