fix: proper jsdoc

src/asynciterable/interval.ts

@@ -26,7 +26,7 @@ class IntervalAsyncIterable extends AsyncIterableX<number> {
  * Produces a new item in an async-iterable at the given interval cycle time.
  *
  * @param {number} dueTime The due time in milliseconds to spawn a new item.
- * @param {boolean} unref Whether to unref the interval timer.
+ * @param {boolean} [unref=false] Whether to unref the interval timer.
  * @returns {AsyncIterableX<number>} An async-iterable producing values at the specified interval.
  */
 export function interval(dueTime: number, unref = false): AsyncIterableX<number> {