import { PipeTransform } from '@angular/core';
import * as i0 from "@angular/core";
export declare class KeysPipe implements PipeTransform {
    transform(value: object): string[];
    static ɵfac: i0.ɵɵFactoryDeclaration<KeysPipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<KeysPipe, "keys", false>;
}