def _multicall_callback(self, values, calls):
        """
        Fires when we get information back from the XML-RPC server.

        This is processes the raw results of system.multicall into a usable
        iterator of values (and/or Faults).

        :param values: list of data txkoji.Connection.call()
        :param calls: list of calls we sent in this multicall RPC
        :returns: KojiMultiCallIterator with the resulting values from all our
                  calls.
        """
        result = KojiMultiCallIterator(values)
        result.connection = self.connection
        result.calls = calls
        return result