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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 is_nomad(self):
 """Is this game nomad. TODO: Can we get from UP 1.4 achievements? """

        nomad = self._header.initial.restore_time == 0 or None
        for i in range(1, self._header.replay.num_players):
            for obj in self._header.initial.players[i].objects:
                if obj.type == 'building' and obj.object_type == 'tc_1':
                    return False
        return nomad