Unable to use click in action mapping

[EmperorBlack]

this.options = { childrenField: 'categoryChildren', allowDrag: (node) => { return ( node.data.parentId )}, allowDrop: true, actionMapping: { mouse: {

      click: (tree, node, $event) =>{
        console.log("calling click");
      }

    }
  },
};

but while clicking over nodes this click method never calls this console. please help.