import { UntypedFormControl, ValidationErrors, Validator } from '@angular/forms';
import * as i0 from "@angular/core";
export declare const urlValidator: (control: UntypedFormControl) => ValidationErrors | null;
export declare class UrlValidatorDirective implements Validator {
    validate(control: UntypedFormControl): ValidationErrors | null;
    static ɵfac: i0.ɵɵFactoryDeclaration<UrlValidatorDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<UrlValidatorDirective, "[systelab-urlValidator]", never, {}, {}, never, never, false, never>;
}