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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 save(self):
 """ Saves changes made to the locally cached SecurityDocument object's data structures to the remote database. """

        resp = self.r_session.put(
            self.document_url,
            data=self.json(),
            headers={'Content-Type': 'application/json'}
        )
        resp.raise_for_status()