import { FormControl, ValidationErrors, Validator } from '@angular/forms';
import * as i0 from "@angular/core";
export declare class UrlValidatorDirective implements Validator {
    /** Directive is enabled or disabled */
    bkUrl?: boolean | string;
    validate(control: FormControl): ValidationErrors | null;
    static ɵfac: i0.ɵɵFactoryDeclaration<UrlValidatorDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<UrlValidatorDirective, "input[bkUrl]", ["bkUrl"], { "bkUrl": { "alias": "bkUrl"; "required": false; }; }, {}, never, never, true, never>;
}