How can I set {_message} to the new format?
code_language.skript:
set {_message} to "!"
set {_message} to {_message}.replaceFirst("!", " "); #Doesn't Work gives error
{_message}.replaceFirst("!", " "); #Works but doesn't change anything in {_message}
player.sendMessage({_message}.replaceFirst("!", " ")); #Does Work and shows the new change