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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _urlparse_qs(url):
 """ Parse a URL query string and return the components as a dictionary. Based on the cgi.parse_qs method.This is a utility function provided with urlparse so that users need not use cgi module for parsing the url query string. Arguments: :type url: str :param url: URL with query string to be parsed """

    # Extract the query part from the URL.
    querystring = urlparse(url)[4]

    # Split the query into name/value pairs.
    pairs = [s2 for s1 in querystring.split('&') for s2 in s1.split(';')]

    # Split the name/value pairs.
    result = OrderedDefaultDict(list)
    for name_value in pairs:
        pair = name_value.split('=', 1)
        if len(pair) != 2:
            continue

        if len(pair[1]) > 0:
            name = _unquote(pair[0].replace('+', ' '))
            value = _unquote(pair[1].replace('+', ' '))
            result[name].append(value)

    return result