$changeUsername
Changes the mentioned user’s nickname.
Syntax
$changeUsername[New nickname]
Parameters
New nickname(Type: String || Flag: Required): The text to change the user’s nickname to. It cannot exceed more than 32 characters. Using%username%will be replaced by the real user’s username.
Example
$nomention
$changeUsername[$noMentionMessage]
Changed <@$mentioned[1]>'s nickname to **$noMentionMessage**.
How $noMentionMessage and $mentioned[] works?