Function assertDisposable

src/service-helpers.js:498–501

(service)

 * @return {!Disposable}
 */
export function assertDisposable(service) {
  devAssert(isDisposable(service), 'required to implement Disposable');
  return /** @type {!Disposable} */ (service);
}

/**
 * Disposes all disposable (implements `Disposable` interface) services in