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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 get_next_start_id(self):
 """If link for next result set has been passed, extract it and get the next set start id"""

        link = self.rws_connection.last_result.links.get("next", None)
        if link:
            link = link['url']
            p = urlparse(link)
            start_id = int(parse_qs(p.query)['startid'][0])
            return start_id

        return None