getActions() {
    return {
      main: this._mainAction(),
      shape: this._shapeAction(),
      crop: this._cropAction(),
      resize: this._resizeAction(),
      flip: this._flipAction(),
      rotate: this._rotateAction(),
      text: this._textAction(),
      mask: this._maskAction(),
      draw: this._drawAction(),
      icon: this._iconAction(),
      filter: this._filterAction(),
      history: this._historyAction(),
    };
  }
Get ui actions
@returns {Object} actions for ui
@private