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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def quitter():
 """ Mark quitter as such. """

    unique_id = request.form['uniqueId']
    if unique_id[:5] == "debug":
        debug_mode = True
    else:
        debug_mode = False

    if debug_mode:
        resp = {"status": "didn't mark as quitter since this is debugging"}
        return jsonify(**resp)
    else:
        try:
            unique_id = request.form['uniqueId']
            app.logger.info("Marking quitter %s" % unique_id)
            user = Participant.query.\
                filter(Participant.uniqueid == unique_id).\
                one()
            user.status = QUITEARLY
            db_session.add(user)
            db_session.commit()
        except exc.SQLAlchemyError:
            raise ExperimentError('tried_to_quit')
        else:
            resp = {"status": "marked as quitter"}
            return jsonify(**resp)