docs: def reset_options(self, empty=True):
          """Empty ALL options.
  
          :param bool empty: When :data:`True`, completelly removes all options;
              when :data:`False`, sets them back to its original value.
  
          This function skips ``locked`` control.
          """
          if empty:
              self.gc = pd.DataFrame(columns=self.clmn)
          else:
              self.gc["value"] = self.gc["default"]