/**
 * Checks if the document is currently in fullscreen mode.
 *
 * @returns {boolean}
 */
export declare const documentIsFullScreen: () => boolean;
/**
 * Checks if the window occupies the entire screen dimensions.
 *
 * @returns {boolean}
 */
export declare const isScreenFilled: () => boolean;
/**
 * Checks if fullscreen mode is active either via document API or by matching screen dimensions.
 *
 * @returns {boolean}
 */
export declare const isFullScreenMode: () => boolean;
/**
 * Requests fullscreen mode for the document.
 *
 * @param {FullscreenOptions} [ops]
 * @returns {Promise<void>}
 */
export declare const requestFullScreen: (ops?: FullscreenOptions) => Promise<void>;
/**
 * Exits fullscreen mode.
 *
 * @returns {Promise<void>}
 */
export declare const exitFullScreen: () => Promise<void>;
/**
 * Attaches a listener to fullscreen change events.
 *
 * @param {EventListenerOrEventListenerObject} listener
 * @param {boolean|AddEventListenerOptions} [ops]
 * @returns {void}
 */
export declare const onFullScreenChange: (listener: EventListenerOrEventListenerObject, ops?: boolean | AddEventListenerOptions) => void;
/**
 * Removes a listener from fullscreen change events.
 *
 * @param {EventListenerOrEventListenerObject} listener
 * @param {boolean|AddEventListenerOptions} [ops]
 * @returns {void}
 */
export declare const offFullScreenChange: (listener: EventListenerOrEventListenerObject, ops?: boolean | AddEventListenerOptions) => void;
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