import 'rxjs/add/operator/map';
import 'rxjs/add/operator/skipWhile';
import { Subject } from 'rxjs/Subject';
import { AngularFireStorage } from 'angularfire2/storage';
/**
  To solve the issue with CORS when cropping, i followed this thread:
  https://groups.google.com/forum/#!msg/firebase-talk/oSPWMS7MSNA/RnvU6aqtFwAJ
*/
export declare class UploadService {
    private storage;
    constructor(storage: AngularFireStorage);
    uploadFile(file: Blob): Subject<{}>;
}