human
I wrote the below code

    def comparator(marker1, marker2):
        '\n                                The    actual    comparator    function.\n                                '
        matches_count = (marker_weight(matches, marker2) - marker_weight(matches, marker1))
        if matches_count:
            return matches_count
        len_diff = (len(marker2) - len(marker1))
        if len_diff:
            return len_diff
        return (markers.index(marker2) - markers.index(marker1))
    return comparator

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

def marker_comparator(matches, markers):