import Hls from 'hls.js';
import { BaseAdapter } from '../adapters/BaseAdapter';
import { HlsPlayerStats } from '../interfaces';
import { IHlsStats } from '../interfaces/IHlsStats';
export declare class HlsStats implements IHlsStats {
    adapter: BaseAdapter;
    intervalFunctionId: number;
    constructor(hlsLibraryInstance: Hls, videoEl: HTMLVideoElement);
    subscribe: (callback: (state: HlsPlayerStats) => void, interval?: number) => () => void;
    unsubscribe: () => void;
    getState: () => HlsPlayerStats;
}