/**
 * Returns a thumbnail track, if available.
 *
 * This hook must only be used in a component mounted inside a {@link THEOplayerDefaultUi} or {@link UiContainer},
 * or alternatively any other component that provides a {@link PlayerContext}.
 *
 * @group Hooks
 */
export declare const useThumbnailTrack: () => import("react-native-theoplayer").TextTrack | undefined;
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