* The cleanup function is called right before the next effect run, or when the
* effect is stopped.
*
- * Throws a warning iff there is no currenct active effect. The warning can be
+ * Throws a warning if there is no current active effect. The warning can be
* suppressed by passing `true` to the second argument.
*
* @param fn - the cleanup function to be registered
* associated effect re-runs.
*
* @param cleanupFn - The callback function to attach to the effect's cleanup.
+ * @param failSilently - if `true`, will not throw warning when called without
+ * an active effect.
+ * @param owner - The effect that this cleanup function should be attached to.
+ * By default, the current active effect.
*/
export function onWatcherCleanup(
cleanupFn: () => void,