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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 GetKey(self, path, cycle=9999, rootpy=True, **kwargs):
 """ Override TDirectory's GetKey and also handle accessing keys nested arbitrarily deep in subdirectories. """

        key = super(_DirectoryBase, self).GetKey(path, cycle)
        if not key:
            raise DoesNotExist
        if rootpy:
            return asrootpy(key, **kwargs)
        return key