import { DlDateAdapter } from './dl-date-adapter';
/**
 * Adapts `number` to be usable as a date by date/time components that work with dates.
 * No op adapter.
 **/
export declare class DlDateAdapterNumber extends DlDateAdapter<number> {
    /**
     * Returns the specified number.
     * @param milliseconds
     *  a moment time time.
     * @returns
     *  the specified moment in time.
     */
    fromMilliseconds(milliseconds: number): number;
    /**
     * Returns the specified number.
     * @param value
     *  a moment time time or `null`
     * @returns
     *  the specified moment in time or `null`
     */
    toMilliseconds(value: number | null): number | null;
}