leapjs-plugins in Angular 2/4/6 application

[msbasanth]

Dear All,

I tried adding leapjs-plugins in
Added two scripts in index.html
`

<script src="https://js.leapmotion.com/leap-0.6.4.js"></script> <script src="https://js.leapmotion.com/leap-plugins-0.1.12.js"></script>`

With by just adding declare var Leap; in one of the class I could use Leap.

        const controller = new Leap.Controller();
        controller.connect();
        controller.on('keyTap', function (circle, frame) {
            console.log('Key Tap Gesture');
        });
        controller.on('screenTap', function (circle, frame) {
            console.log('Screen Tap Gesture');
        });
        controller.on('swipe', function (circle, frame) {
            console.log('Swipe Gesture');
        });

But when I use leapjs-plugins as mentioned in the documentation,

        controller.use('handEntry');
        controller.on('handFound',
            function (hand) { console.log('hand found', hand); }
        );

I am getting error,

ng:///AppModule/AppComponent_Host.ngfactory.js:5 ERROR Error: Leap Plugin handEntry not found.
    at viewWrappedDebugError (vendor.js:60071)
    at callWithDebugContext (vendor.js:63837)
    at Object.debugCheckAndUpdateView [as checkAndUpdateView] (vendor.js:63505)
    at ViewRef_.push../node_modules/@angular/core/fesm5/core.js.ViewRef_.detectChanges (vendor.js:61321)
    at vendor.js:57198
    at Array.forEach (<anonymous>)
    at ApplicationRef.push../node_modules/@angular/core/fesm5/core.js.ApplicationRef.tick (vendor.js:57198)
    at ApplicationRef.push../node_modules/@angular/core/fesm5/core.js.ApplicationRef._loadComponent (vendor.js:57232)
    at ApplicationRef.push../node_modules/@angular/core/fesm5/core.js.ApplicationRef.bootstrap (vendor.js:57174)
    at vendor.js:56975

Any hint on how we can use leapjs-plugins in Angular.

Thanks
Basanth