/** @public */
export type IsMounted = () => boolean;
/**
 * Returns a stable function that reports whether the component has committed.
 *
 * The flag becomes available during the layout phase and is cleared before
 * unmount cleanup completes. It remains false during server rendering.
 *
 * @returns A stable function that reads the current mounted state.
 * @public
 */
export declare function useIsMounted(): IsMounted;