code: function mouseout(inEvent) {
    if (!this.isEventSimulatedFromTouch_(inEvent)) {
      const e = prepareEvent(inEvent, this.dispatcher);
      this.dispatcher.leaveOut(e, inEvent);
    }
  }
docs: Handler for `mouseout`.
  
  @this {MouseSource}
  @param {MouseEvent} inEvent The in event.