import { ValidatorFn } from '@angular/forms';
import { Moment } from 'moment';
/**
 * Custom validator to validate startDateTime and endDateTime and return custom validation object.
 * @export
 * @param {string} controlName
 * @param {(string | null | Moment)} value
 * @return {*}  {ValidatorFn}
 */
export declare function dateAndTimeValidator(controlName: string, value: string | null | Moment, startDate?: string | number | null, endDate?: string | number | null): ValidatorFn;