_changeFlip(event) {
    const button = event.target.closest('.tui-image-editor-button');
    if (button) {
      const flipType = this.getButtonType(button, ['flipX', 'flipY', 'resetFlip']);
      if (!this.flipStatus && flipType === 'resetFlip') {
        return;
      }

      this._actions.flip(flipType).then((flipStatus) => {
        const flipClassList = this._els.flipButton.classList;
        this.flipStatus = false;

        flipClassList.remove('resetFlip');
        forEach(['flipX', 'flipY'], (type) => {
          flipClassList.remove(type);
          if (flipStatus[type]) {
            flipClassList.add(type);
            flipClassList.add('resetFlip');
            this.flipStatus = true;
          }
        });
      });
    }
  }
change Flip status
@param {object} event - change event
@private