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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 sort_url_qsl(cls, raw_url, **kwargs):
 """Do nothing but sort the params of url. raw_url: the raw url to be sorted; kwargs: (optional) same kwargs for ``sorted``. """

        parsed_url = urlparse(raw_url)
        qsl = parse_qsl(parsed_url.query)
        return cls._join_url(parsed_url, sorted(qsl, **kwargs))