human
Complete the below
def convert_regex_to_flask_path(url_path):

    ''''Converts a regex matching url to one that can be used with flask'
    '''
assistant
#Here is the Python code you requested.
    for token in [u'$']:
        url_path = url_path.replace(token, u'')
    def caller(reg):
        (match_name, match_pattern) = reg.groups()
        return u'<regex("{0}"):{1}>'.format(match_pattern, match_name)
    url_path = re.sub(u'\\(\\?P<(.*?)>(.*?)\\)', caller, url_path)
    if url_path.endswith(u'/?'):
        url_path = url_path.rstrip(u'/?')
    return url_path