- * @param $key string
- * @param $callback closure Callback method to be executed
- * @param $exptime int Either an interval in seconds or a unix timestamp for expiry
- * @param $attempts int The amount of times to attempt a merge in case of failure
- * @return bool success
+ * @param string $key
+ * @param Closure $callback Callback method to be executed
+ * @param int $exptime Either an interval in seconds or a unix timestamp for expiry
+ * @param int $attempts The amount of times to attempt a merge in case of failure
+ * @return bool Success