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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 clear(self):
 """ Clear the cache and remove all the files from disk. """

        self.log(u"Clearing cache...")
        for file_handler, file_info in self.cache.values():
            self.log([u"  Removing file '%s'", file_info])
            gf.delete_file(file_handler, file_info)
        self._initialize_cache()
        self.log(u"Clearing cache... done")