message: chore(Subscriber): format code
diff: +/** @prettier */
  import { isFunction } from './util/isFunction';
  import { EMPTY_OBSERVER } from './EMPTY_OBSERVER';
  import { Observer, PartialObserver } from './types';
  @@ -28,9 +29,7 @@ export class Subscriber<T> extends Subscription implements Observer<T> {
  * Observer represented by the given arguments.
  * @nocollapse
  */
  - static create<T>(next?: (x?: T) => void,
  - error?: (e?: any) => void,
  - complete?: () => void): Subscriber<T> {
  + static create<T>(next?: (x?: T) => void, error?: (e?: any) => void, complete?: () => void): Subscriber<T> {
  return new Subscriber(next, error, complete);
  }
  @@ -45,9 +44,11 @@ export class Subscriber<T> extends Subscription implements Observer<T> {
  * @param {function(): void} [complete] The `complete` callback of an
  * Observer.
  */
  - constructor(destinationOrNext?: PartialObserver<any> | ((value: T) => void) | null,
  + constructor(
  + destinationOrNext?: PartialObserver<any> | ((value: T) => void) | null,
  error?: ((e?: any) => void) | null,
  - complete?: (() => void) | null) {
  + complete?: (() => void) | null
  + ) {
  super();
  switch (arguments.length) {
  @@ -69,7 +70,7 @@ export class Subscriber<T> extends Subscription implements Observer<T> {
  break;
  }
  default:
  - this.destination = new SafeSubscriber<T>(this, <((value: T) => void)> destinationOrNext, error, complete);
  + this.destination = new SafeSubscriber<T>(this, <(value: T) => void>destinationOrNext, error, complete);
  break;
  }
  }
  @@ -142,11 +143,12 @@ export class Subscriber<T> extends Subscription implements Observer<T> {
  * @extends {Ignored}
  */
  export class SafeSubscriber<T> extends Subscriber<T> {
  -
  - constructor(private _parentSubscriber: Subscriber<T>,
  + constructor(
  + private _parentSubscriber: Subscriber<T>,
  observerOrNext?: PartialObserver<T> | ((value: T) => void) | null,
  error?: ((e?: any) => void) | null,
  - complete?: (() => void) | null) {
  + complete?: (() => void) | null
  + ) {
  super();
  let next: ((value: T) => void) | undefined;
  