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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 apply_cut(self, cut):
 """Return a cut version of this |Subsystem|. Args: cut (Cut):
 The cut to apply to this |Subsystem|. Returns: Subsystem: The cut subsystem. """

        return Subsystem(self.network, self.state, self.node_indices,
                         cut=cut, mice_cache=self._mice_cache)