import { InheritableEventEmitter } from '@akolos/event-emitter';
import { TimelineEvents } from './timeline-events';
import { Timeline } from './timeline';
export declare abstract class AbstractTimeline extends InheritableEventEmitter<TimelineEvents<AbstractTimeline>> implements Timeline {
    private readonly _length;
    private _localTime;
    private _stopped;
    get length(): number;
    get localTime(): number;
    get stopped(): boolean;
    constructor(length: number);
    stop(): void;
    seek(time: number): void;
    complete(): void;
    __update(nextLocalTime: number): void;
    protected abstract _start(): void;
    protected abstract _stop(): void;
    protected abstract _seek(from: number, to: number): void;
    protected abstract _completed(): void;
    protected abstract _update(dt: number): void;
}