docs: def drop_schema(self):
          """Drop all gauged tables"""
          try:
              self.cursor.execute("""
                  DROP TABLE IF EXISTS gauged_data;
                  DROP TABLE IF EXISTS gauged_keys;
                  DROP TABLE IF EXISTS gauged_writer_history;
                  DROP TABLE IF EXISTS gauged_cache;
                  DROP TABLE IF EXISTS gauged_statistics;
                  DROP TABLE IF EXISTS gauged_metadata""")
              self.db.commit()
          except self.psycopg2.InternalError:  # pragma: no cover
              self.db.rollback()