human
Solve the following python programming problem given the following code:
def filter_factory(global_conf, **local_conf) : 
    'Returns a Static Web WSGI filter for use with paste.deploy.' 
    conf = global_conf.copy () 
    conf.update (local_conf) 
    register_swift_info ('staticweb') 
    def staticweb_filter(app) : 
        return StaticWeb (app, conf) 
return <MASK> 
    
    Given the code above, what is a proper replacement for <MASK>? Choose among: conf, local_conf, global_conf
assistant
#Here is a proper replacement for <MASK>.
def staticweb_filter(