import { BehaviorSubject } from 'rxjs';
declare class LifeCycle<T extends number> {
    constructor(state: T, backTrackable?: boolean);
    setState(state: T): void;
    destroy(): void;
    waitFor(state: T, ttlMs: number): Promise<void>;
    get state(): T;
    get stateSubject(): BehaviorSubject<T>;
    private state_;
    private backTrackable_;
    private stateSubject_;
}
export { LifeCycle };
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