Code (Whispers to GM):  on('ready',function(){
    "use strict";
    on('chat:message',function(msg){
        if('whisper' === msg.type  && msg.playerid !=='API'){
            sendChat("Who's Talking", `/w gm <b>${msg.who}</b> is whispering to <b>${msg.target_name}</b>.`);
        }
    });
});
 Code (Tells everyone):  on('ready',function(){
    "use strict";
    on('chat:message',function(msg){
        if('whisper' === msg.type){
            sendChat("Who's Talking", `<b>${msg.who}</b> is whispering to <b>${msg.target_name}</b>.`);
        }
    });
});  Result:    Who's Talking: The Aaron  is whispering to  Captain Taco .