Editing WoW:API GetNumCompletedAchievements

{{wowapi}} __NOTOC__

<!-- Describe the purpose of the function, exhausting detail can be saved for a later section -->
Return the total number of Achievements or only guild one, and number completed. 
<!-- List return values and arguments as well as function name, follow Blizzard usage convention for args -->
 total, completed = GetNumCompletedAchievements([guildOnly])


== Arguments ==
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:;guildOnly: Boolean - True if you want guild achievement only (Default: False)


== Returns ==
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:total, completed <!-- remove this line if it's just one value -->

:;total: Number - total number of available achievements or guild achievement only
:;completed: Number - total number of completed achievements or guild achievement only

== Details ==
<!-- Details not appropriate for the main description can go here. 
     REMOVE the section if you're just going to restate the intro line! -->

: Unknown whether this takes Feats of Strength into account.