import { PipeTransform } from '@angular/core';
import { DestroyableContainer } from '@ts-core/common';
import { LanguageService } from '@ts-core/frontend/language';
export declare class LanguagePipeHasPure extends DestroyableContainer implements PipeTransform {
    private language;
    constructor(language: LanguageService);
    transform(key: string): boolean;
    destroy(): void;
}