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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 copy(self):
 """ Create a deep copy of this sequence Returns: :obj:`.FileSequence`: """

        fs = self.__class__.__new__(self.__class__)
        fs.__dict__ = self.__dict__.copy()
        fs._frameSet = None
        if self._frameSet is not None:
            fs._frameSet = self._frameSet.copy()
        return fs