code: public static void unsubscribe(Object object) throws IllegalStateException {
          if (!sIsInitialized) {
              throw new IllegalStateException("Wings must be initialized. See Wings#init().");
          }
          WingsInjector.getBus().unregister(object);
      }
docs: Unsubscribes to link state changes of the endpoints.
  
  @param object the {@link java.lang.Object} you wish to unsubscribe.
  @throws IllegalStateException Wings must be initialized. See {@link Wings#init(IWingsModule, Class[])}.