import { PipeTransform } from '@angular/core';
import * as i0 from "@angular/core";
export declare class TruncatePipe implements PipeTransform {
    private static readonly DEFAULT_SUFFIX;
    private static readonly DEFAULT_PRESERVE_WORDS;
    private static readonly SPACE;
    private static readonly ERROR_LENGTH_LESS_THAN_ONE;
    transform(value: string, length: number, suffix?: string, preserveWords?: boolean): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<TruncatePipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<TruncatePipe, "truncate", false>;
}