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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 write(self):
 """ Write contents of cache to disk. """

        io.debug("Storing cache '{0}'".format(self.path))
        with open(self.path, "w") as file:
            json.dump(self._data, file, sort_keys=True, indent=2,
                      separators=(',', ': '))