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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 logout(self):
 """ Logout from the backend :return: return True if logout is successfull, otherwise False :rtype: bool """

        logger.debug("request backend logout")
        if not self.authenticated:
            logger.warning("Unnecessary logout ...")
            return True

        endpoint = 'logout'

        _ = self.get_response(method='POST', endpoint=endpoint)

        self.session.close()
        self.set_token(token=None)

        return True