Prints the message

@param msgId {String} translatable message ID
@param args {Object...} arguments
function(msgId, ...args) {
      for (var i = 0; i < args.length; i++) {
        var arg = args[i];
        if (typeof arg !== "string" && typeof arg !== "number" && arg !== null) {
          args[i] = String(arg); 
        }
      }
      if (this.isMachineReadable()) {
        let str = "##" + msgId + ":" + JSON.stringify(args);
        console.log(str);
      } else {
        var writer = this.getWriter();
        let str = this.decode(msgId, ...args);
        if (writer) {
          writer(str, msgId, ...args); 
        } else {
          console.log(str); 
        }
      }
    }