import { Observable } from "rxjs";
import * as i0 from "@angular/core";
export declare class CommercialApiService {
    private readonly config;
    apiUrl: string;
    header: Headers;
    static handleError(error: Response): Observable<never>;
    getAccountWrittingDownload(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<CommercialApiService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<CommercialApiService>;
}