export type AnnouncePoliteness = 'assertive' | 'polite';
export type AnnounceOptions = {
    /**
     * `'polite'` — queues the announcement; does not interrupt ongoing speech.
     * `'assertive'` — interrupts immediately. Use sparingly; reserve for errors.
     *
     * Default: `'polite'`.
     */
    politeness?: AnnouncePoliteness;
};
/**
 * Announces a message to screen readers via a singleton visually-hidden
 * live region. Safe to call outside a component lifecycle (no cleanup needed).
 *
 * The clear-then-set pattern (50 ms delay) forces AT to re-read even when the
 * message text hasn't changed.
 *
 * @example
 * ```ts
 * announce('3 results found');
 * announce('Session expired', { politeness: 'assertive' });
 * ```
 */
export declare const announce: (message: string, options?: AnnounceOptions) => void;
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