human
Here's a good function header given the following:
I wrote the below code

    def trim_url(x, limit=trim_url_limit):
        return (((limit is not None) and ((len(x) > limit) and (u'%s...' % x[:max(0, (limit - 3))]))) or x)
    safe_input = isinstance(text, SafeData)
    words = word_split_re.split(force_text(text))
    for (i, word) in enumerate(words):
        if ((u'.' in word) or (u'@' in word) or (u':' in word)):
            (lead, middle, trail) = (u'', word, u'')
            for punctuation in TRAILING_PUNCTUATION:
                if middle.endswith(punctuation):
                    middle = middle[:(- len(punctuation))]
                    trail = (punctuation + trail)
            for (opening, closing) in WRAPPING_PUNCTUATION:
                if middle.startswith(opening):
                    middle = middle[len(opening):]
                    lead = (lead + opening)
                if (middle.endswith(closing) and (middle.count(closing) == (middle.count(opening) + 1))):
                    middle = middle[:(- len(closing))]
                    trail = (closing + trail)
            url = None
            nofollow_attr = (u'    rel="nofollow"' if nofollow else u'')
            if simple_url_re.match(middle):
                url = smart_urlquote_wrapper(middle)
            elif simple_url_2_re.match(middle):
                url = smart_urlquote_wrapper((u'http://%s' % middle))
            elif ((u':' not in middle) and simple_email_re.match(middle)):
                (local, domain) = middle.rsplit(u'@', 1)
                try:
                    domain = domain.encode(u'idna').decode(u'ascii')
                except UnicodeError:
                    continue
                url = (u'mailto:%s@%s' % (local, domain))
                nofollow_attr = u''
            if url:
                trimmed = trim_url(middle)
                if (autoescape and (not safe_input)):
                    (lead, trail) = (escape(lead), escape(trail))
                    (url, trimmed) = (escape(url), escape(trimmed))
                middle = (u'<a    href="%s"%s>%s</a>' % (url, nofollow_attr,...

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

@register.filter
def urlize_quoted_links(text, trim_url_limit=None, nofollow=True, autoescape=True):