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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 _link_dimensioned_streams(self):
 """ Should perform any linking required to update titles when dimensioned streams change. """

        streams = [s for s in self.streams if any(k in self.dimensions for k in s.contents)]
        for s in streams:
            s.add_subscriber(self._stream_update, 1)