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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 _populate_setup(self):
 """Just create a local marker file since the actual database should already be created on the Fuseki server. """

        makedirs(os.path.dirname(self._cache_marker))
        with codecs.open(self._cache_marker, 'w', encoding='utf-8') as fobj:
            fobj.write(self.cache_uri)
        self.graph.open(self.cache_uri)