Method update

src/compat/database/interfaces.ts:13–13

(item: FirebaseOperation, data: Partial<T>)

  stateChanges(events?: ChildEvent[]): Observable<SnapshotAction<T>>;
  auditTrail(events?: ChildEvent[]): Observable<SnapshotAction<T>[]>;
  update(item: FirebaseOperation, data: Partial<T>): Promise<void>;
  set(item: FirebaseOperation, data: T): Promise<void>;
  push(data: T): firebase.database.ThenableReference;
  remove(item?: FirebaseOperation): Promise<void>;