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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 _continue_params(self):
 """ Returns query string fragment continue parameters """

        if not self.data.get('continue'):
            return

        params = []
        for item in self.data['continue']:
            params.append("&%s=%s" % (item, self.data['continue'][item]))

        return ''.join(params)