import { PipeTransform } from '@angular/core';
declare type unit = 'bytes' | 'KB' | 'MB' | 'GB' | 'TB' | 'PB';
declare type unitPrecisionMap = {
    [u in unit]: number;
};
export declare class FileSizePipe implements PipeTransform {
    private readonly units;
    transform(bytes?: number, precision?: number | unitPrecisionMap): string;
}
export {};