docs: def run_web(self, flask, host='127.0.0.1', port=5000, **options):
          # type: (Zsl, str, int, **Any)->None
          """Alias for Flask.run"""
          return flask.run(
              host=flask.config.get('FLASK_HOST', host),
              port=flask.config.get('FLASK_PORT', port),
              debug=flask.config.get('DEBUG', False),
              **options
          )