[Help] Small Ai question about making an NPC announce something

is there a way to make an NPC announce something similar to myself::Say( "xxx" ) or myself::Shout::( "xxx" )? as it does when it announces heroes?

I tried gg::Announce( "xxx" ); but this only appears to GM characters. I also checked the olympiad operator, who uses myself::MakeFString() inside of gg::Announce(), but I do not know the format to use this.