/**
 * React hook for synchronizing a state value with browser LocalStorage.
 *
 * This hook provides a stateful value and a setter function, similar to `useState`,
 * but persists the value in LocalStorage under the specified key. The value is
 * automatically updated when LocalStorage changes (including from other tabs/windows).
 *
 * Use this hook only when you need to persist state across sessions or tabs.
 * If you only need to share state within a single session, consider using `useSessionStorage`
 *
 * Example:
 * ```tsx
 * const [value, setValue] = useLocalStorage('myKey', 'defaultValue');
 *
 * // Read the value
 * console.log(value);
 *
 * // Update the value (persists to LocalStorage)
 * setValue('newValue');
 * ```
 *
 * @param key - The LocalStorage key to store the value under. Must be a non-empty string.
 * @param defaultValue - The default value to use if the key does not exist in LocalStorage.
 * @returns A tuple containing the current value and a setter function to update it.
 *
 */
declare function useLocalStorage(key: string, defaultValue?: unknown): [unknown, (newValue: unknown) => unknown];
export { useLocalStorage };
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