import { DBaseStateSet } from "./d-base-state-set";
import { DBaseStateSetSubDatum } from "./d-base-state-set-sub-datum";
export declare abstract class DBaseStateSetSubDatumImp implements DBaseStateSetSubDatum {
    private _stateToTargets;
    private _interval;
    private _timeoutId?;
    private _onTimeBound;
    constructor(interval: number);
    get interval(): number;
    add(state: string, target: DBaseStateSet): this;
    remove(state: string, target: DBaseStateSet): this;
    protected start(): this;
    protected stop(): this;
    protected onTime(): void;
    protected abstract newValue(now: number, interval: number): number | null;
    protected abstract newOn(now: number, interval: number): boolean;
}