import { UntypedFormControl } from '@angular/forms';
export declare const dateRangeValidator: (control: UntypedFormControl) => {
    dateFromRangeRequired: boolean;
    dateToRangeRequired?: undefined;
    dateFromMoreThanDateTo?: undefined;
} | {
    dateToRangeRequired: boolean;
    dateFromRangeRequired?: undefined;
    dateFromMoreThanDateTo?: undefined;
} | {
    dateFromMoreThanDateTo: boolean;
    dateFromRangeRequired?: undefined;
    dateToRangeRequired?: undefined;
};