Using Card Reader Plugin in Ionic 2

I’m trying to use this plugin in my ionic 2 app but thus far, I’ve been unsuccessful.

I added it using cordova plugin add https://github.com/elizabethrego/cordova-plugin-unimag-swiper/

Afterwards I try to access it using the following:

cordova.plugins.unimag.swiper.activate();
cordova.plugins.unimag.swiper.enableLogs(true);
cordova.plugins.unimag.swiper.setReaderType(‘unimag_ii’);

I get the error “Cannot read property ‘unimag’ of undefined”

I tried adding the following interface to my typings folder as explained here

interface Window {
plugins: any;
}

The error still persists. Can you point me in the right direction? I’m having a hard time finding resources for using cordova plugins in ionic 2 that aren’t native plugins.