code: public static void ensureMouseOut(HasHandlers target) {
  
          NativeEvent nativeEvent = Document.get().createMouseOutEvent(
              0,
              0,
              0,
              0,
              0,
              false,
              false,
              false,
              false,
              0,
              null);
          DomEvent.fireNativeEvent(nativeEvent, target);
      }
docs: Triggers a mouse-out event for the given target.<p>
  
  Useful in case something is capturing all events.<p>
  
  @param target the target to use