import { Observable } from "rxjs/Observable";
import "./add";

const ob1 = Observable.of(1) as Observable<number>;
                       ~~                           [add % ("of")]
const ob2 = ob1.map(value => value + 1);
                ~~~                                 [add % ("map")]

const ob3 = Observable.from([1]);
const ob4 = ob1.filter(value => value > 1);

[add]: RxJS add import is missing from ./add.ts: %s