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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 run(self):
 """Executed by Sphinx. :returns: Single DisqusNode instance with config values passed as arguments. :rtype: list """

        disqus_shortname = self.get_shortname()
        disqus_identifier = self.get_identifier()
        return [DisqusNode(disqus_shortname, disqus_identifier)]