import { Subject } from "rxjs/Subject";
import { of } from "rxjs/observable/of";

class EventEmitter<T> extends Subject<T> {}
let eventEmitter: EventEmitter<any>;
const foreign = of(1);

class SomeSubject<T> extends Subject<T> {}
let someSubject: SomeSubject<any>;
    ~~~~~~~~~~~                                 [finnish % ("someSubject")]
const finnish = of(1);
      ~~~~~~~                                   [finnish % ("finnish")]

[finnish]: Finnish notation required for %s