* all - all the messages.
* required - messages which should be translated in order to get a complete translation.
* optional - messages which can be translated, the fallback translation is used if not translated.
- * obsolete - messages which should not be translated, either because they are not exist, or they are ignored messages.
+ * obsolete - messages which should not be translated, either because they do not exist, or they are ignored messages.
* translated - messages which are either required or optional, but translated from English and needed.
*
* @param $code The language code.
* all - all the messages.
* required - messages which should be translated in order to get a complete translation.
* optional - messages which can be translated, the fallback translation is used if not translated.
- * obsolete - messages which should not be translated, either because they are not exist, or they are ignored messages.
+ * obsolete - messages which should not be translated, either because they do not exist, or they are ignored messages.
* translated - messages which are either required or optional, but translated from English and needed.
*
* @param $code The language code.