human
Complete the below
def configure_before_handlers(app):

    ''''Configures the before request handlers.'
    '''

=====
Give me a the Python program you requested?
assistant
#Here is the Python program you requested.
    @app.before_request
    def update_lastseen():
        'Updates    `lastseen`    before    every    reguest    if    the    user    is\n                                authenticated.'
        if current_user.is_authenticated:
            current_user.lastseen = time_utcnow()
            db.session.add(current_user)
            db.session.commit()
    if app.config['REDIS_ENABLED']:
        @app.before_request
        def mark_current_user_online():
            if current_user.is_authenticated:
                mark_online(current_user.username)
            else:
                mark_online(request.remote_addr, guest=True)