<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 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
        )