human
I wrote the below code

    def prep(r):
        if (r.method != 'search_ac'):
            return False
        resource = r.resource
        resource.add_filter((FS('dvr_case.id') != None))
        return True
    s3.prep = prep
    return s3_rest_controller('pr', 'person')

What's a good function header?

Here's a good function header?
assistant
#Here's a good function header.

def person_search():