import { type Dispatch, type SetStateAction } from "react";
/**
 * Synchronizes state with `localStorage` so it persists across browser reloads.
 * Automatically parses JSON and updates state when storage events fire from other tabs.
 * Supports functional updates and gracefully catches storage quota exceptions.
 *
 * @param key - The localStorage key.
 * @param initialValue - The fallback initial value if the key does not exist.
 * @returns A tuple matching `useState`: `[value, setStoredValue]`.
 *
 * @example
 * ```tsx
 * const [theme, setTheme] = useLocalStorage("theme", "light");
 * setTheme(prev => prev === "light" ? "dark" : "light");
 * ```
 */
export declare function useLocalStorage<T>(key: string, initialValue: T): readonly [T, Dispatch<SetStateAction<T>>];
export default useLocalStorage;