import { HttpClient, HttpHeaders, HttpResponse } from '@angular/common/http'; import { Observable } from 'rxjs'; export declare class ImageUploadService { private http; constructor(http: HttpClient); uploadImage(url: string, image: File, headers?: HttpHeaders | { [name: string]: string | string[]; }, partName?: string, customFormData?: { [header: string]: string | Blob; }, withCredentials?: boolean): Observable>; }