import { PipeTransform } from "@angular/core";
import * as i0 from "@angular/core";
export declare class FormatDurationPipe implements PipeTransform {
    transform(duration: number, displayLevels?: number): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<FormatDurationPipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<FormatDurationPipe, "formatDuration", true>;
}