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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 delete(self):
 """Deletes the local marker file and also any data in the Fuseki server. """

        MetadataCache.delete(self)
        try:
            self.graph.query('DELETE WHERE { ?s ?p ?o . }')
        except ResultException:
            # this is often just a false positive since Jena Fuseki does not
            # return tuples for a deletion query, so swallowing the exception
            # here is fine
            logging.exception('error when deleting graph')