Tooltip not implemented

In "menu.js" file in purr-data/emscripten/project/purr-data/components/menu/menu.js tooltip function is not implemented and is marked as a todo. I want to know whether there is any reason for that or should I implement it.

window.tooltip = function (menu_item, tooltip) { // console.log("NEED TO IMPLEMENT TOOLTIP", tooltip); }

I would love to work on this issue.