def LogoutSessionId(self):
        """
            Logout the current session_id from CommonSense
            
            @return (bool) - Boolean indicating whether LogoutSessionId was successful
        """
        if self.__SenseApiCall__('/logout.json', 'POST'):
            self.__setAuthenticationMethod__('not_authenticated')
            return True
        else:
            self.__error__ = "api call unsuccessful"
            return False