import { AbstractControl, ValidationErrors, Validator } from '@angular/forms';
import * as i0 from "@angular/core";
export declare class DateRangeValidator implements Validator {
    constructor();
    validate(control: AbstractControl): ValidationErrors | null;
    static ɵfac: i0.ɵɵFactoryDeclaration<DateRangeValidator, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<DateRangeValidator, "[uiDateRange]", never, {}, {}, never, never, false>;
}
