/**
 * Installs the a11y announcer element into the provided root portal element. For each new Handsontable
 * instance only one announcer element is created, so it can be reused across multiple instances.
 *
 * @param {HTMLElement} rootPortalElement The root element where the announcer will be installed.
 */
export declare function install(rootPortalElement: HTMLElement): void;
/**
 * Uninstalls the a11y announcer element if it was installed.
 */
export declare function uninstall(): void;
/**
 * Announces a message to assistive technologies by updating the content of the a11y announcer element.
 *
 * @param {string} message The message to announce.
 */
export declare function announce(message: string): void;