import { AsyncSubject } from "rxjs/AsyncSubject";
import { Subscription } from "rxjs/Subscription";

const a = new AsyncSubject<number>();
const asub = a.subscribe();
asub.unsubscribe();

const b = new AsyncSubject<number>();
b.unsubscribe();
  ~~~~~~~~~~~                                       [no-subject-unsubscribe]

const csub = new Subscription();
const c = new AsyncSubject<number>();
csub.add(c);
         ~                                          [no-subject-unsubscribe]

[no-subject-unsubscribe]: Calling unsubscribe on a subject is forbidden