export declare const AVCaptionSettingsKey: {
    readonly AVCaptionMediaTypeKey: "AVCaptionMediaTypeKey";
    readonly AVCaptionMediaSubTypeKey: "AVCaptionMediaSubTypeKey";
    readonly AVCaptionTimeCodeFrameDurationKey: "AVCaptionTimeCodeFrameDurationKey";
    readonly AVCaptionUseDropFrameTimeCodeKey: "AVCaptionUseDropFrameTimeCodeKey";
};
export type AVCaptionSettingsKey = typeof AVCaptionSettingsKey[keyof typeof AVCaptionSettingsKey];
