//#region src/useBeforeMount/useBeforeMount.d.ts
/**
 * Runs a function once during the component's first render.
 *
 * This hook is useful for synchronous setup that must be available before the
 * initial React commit. It intentionally does not run again on re-render.
 *
 * @param fn - Function to run once before mount.
 *
 * @example
 * ```tsx
 * useBeforeMount(() => {
 *   registry.register(id);
 * });
 * ```
 */
declare const useBeforeMount: (fn: () => void) => void;
//#endregion
export { useBeforeMount };
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