Function mixInSubscriptionManager

mixInSubscriptionManager<B extends Constructor>(
Base: B,
): { prototype: __type<any>; new (...args: any[]): __type } & B
Mixes in SubscriptionManager as an additional superclass.
```
class MySubclass extends mixInSubscriptionManager(MyOtherSuperclass) {
  subscribeAndManage(observable: Observable<any>) {
    this.subscribeTo(observable);
  }
}
```
Type Parameters
- B extends Constructor
Parameters
- Base: B
Returns { prototype: __type<any>; new (...args: any[]): __type } & B
- Defined in projects/rxjs-core/src/lib/subscription-manager.ts:16