/**
 * React hook for synchronizing a state value with browser SessionStorage.
 *
 * This hook provides a stateful value and a setter function, similar to `useState`,
 * but persists the value in SessionStorage under the specified key across the same session.
 *
 * Use this hook only when you need to persist state across tabs within the same session.
 * If you need to persist state across sessions, consider using `useLocalStorage`
 * instead.
 *
 * Example:
 * ```tsx
 * const [value, setValue] = useSessionStorage('myKey', 'defaultValue');
 *
 * // Read the value
 * console.log(value);
 *
 * // Update the value (persists to SessionStorage)
 * setValue('newValue');
 * ```
 *
 * @param key - The SessionStorage 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 SessionStorage.
 * @returns A tuple containing the current value and a setter function to update it.
 *
 */
declare function useSessionStorage(key: string, defaultValue?: unknown): [unknown, (newValue: unknown) => unknown];
export { useSessionStorage };
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