docs: def write_config(self, enabled):
          """Writes the configuration.
  
          This method can be overloaded to integrate with your application's own
          configuration mechanism. By default, a single 'status' file is written
          in the reports' directory, containing either ``ENABLED`` or
          ``DISABLED``; if the file doesn't exist, `UNSET` is assumed.
  
          :param enabled: Either `Stats.UNSET`, `Stats.DISABLED` or
          `Stats.ENABLED`.
          """
          status_file = os.path.join(self.location, 'status')
          with open(status_file, 'w') as fp:
              if enabled is Stats.ENABLED:
                  fp.write('ENABLED')
              elif enabled is Stats.DISABLED:
                  fp.write('DISABLED')
              else:
                  raise ValueError("Unknown reporting state %r" % enabled)