/**
 * Determines the model type of the Date/Time picker another type.
 */
export declare abstract class DlDateAdapter<D> {
    /**
     * Create a new instance of a `D` type from milliseconds.
     * @param milliseconds
     *  a moment in time value as milliseconds (local time zone)
     * @returns
     *  an instance of `D` for the specified moment in time.
     */
    abstract fromMilliseconds(milliseconds: number): D;
    /**
     * Returns a moment in time value as milliseconds (local time zone).
     * @param value
     *  a moment in time value as `D` or `null`.
     * @returns
     *  a moment in` for the specified value or `null`
     */
    abstract toMilliseconds(value: D | null): number | null;
}