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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _feed(self, stanza):
 """ Dispatch the given `stanza`. :param stanza: Stanza to dispatch :type stanza: :class:`~.StanzaBase` :rtype: :class:`bool` :return: true if the stanza was dispatched, false otherwise. Dispatch the stanza to up to one handler registered on the dispatcher. If no handler is found for the stanza, :data:`False` is returned. Otherwise, :data:`True` is returned. """

        from_ = stanza.from_
        if from_ is None:
            from_ = self.local_jid

        keys = [
            (stanza.type_, from_, False),
            (stanza.type_, from_.bare(), True),
            (None, from_, False),
            (None, from_.bare(), True),
            (stanza.type_, None, False),
            (None, from_, False),
            (None, None, False),
        ]

        for key in keys:
            try:
                cb = self._map[key]
            except KeyError:
                continue
            cb(stanza)
            return