import { VideoQuality } from '@vkontakte/videoplayer-shared';
import { type PlaybackRate } from '@vkontakte/videoplayer-core';
export declare const savePreferredVolume: (volume: number) => void;
export declare const getPreferredVolume: () => number | undefined;
export declare const savePreferredQuality: (videoId: number | undefined, value: VideoQuality) => void;
export declare const deletePreferredQuality: () => void;
export declare const getPreferredQuality: (currentVideoId: number | undefined) => VideoQuality | undefined;
export declare const savePreferMute: (preferMute: boolean) => void;
export declare const getPreferMute: () => boolean;
export declare const savePreferTrafficSavingEnabled: (trafficSavingEnabled: boolean) => void;
export declare const getPreferTrafficSavingEnabled: () => boolean;
export declare const getPreferredStreamLanguage: () => string | undefined;
export declare const savePreferredStreamLanguage: (language: string) => void;
export declare const savePreferredRate: (rate: PlaybackRate) => void;
export declare const getPreferredRate: () => PlaybackRate | undefined;
export declare const savePreferredAutoplayNext: (autoplayNext: boolean) => void;
export declare const getPreferredAutoplayNext: () => boolean;
