import { PipeTransform } from '@angular/core';
import * as i0 from "@angular/core";
export declare class ReadAsDataURLPipe implements PipeTransform {
    transform(file: File | Blob | null): Promise<string | null>;
    static ɵfac: i0.ɵɵFactoryDeclaration<ReadAsDataURLPipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<ReadAsDataURLPipe, "readAsDataURL", true>;
}