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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 is_valid(self):
 """Returns a Client object if this is a valid OAuth request."""


        try:
            request = self.get_oauth_request()
            client = self.get_client(request)
            params = self._server.verify_request(request, client, None)
        except Exception as e:
            raise e

        return client