code: function() {
          // this.logger.log("No children, " + " isDyanmic: " + this.isDynamic() + " expanded: " + this.expanded);
          if (this.isLoading) {
              this.logger.log("returning the loading icon");
              return "ygtvloading";
          } else {
              // location top or bottom, middle nodes also get the top style
              var loc = (this.nextSibling) ? "t" : "l";
  
              // type p=plus(expand), m=minus(collapase), n=none(no children)
              var type = "n";
              if (this.hasChildren(true) || (this.isDynamic() && !this.getIconMode())) {
              // if (this.hasChildren(true)) {
                  type = (this.expanded) ? "m" : "p";
              }
  
              // this.logger.log("ygtv" + loc + type);
              return "ygtv" + loc + type;
          }
      }
docs: Returns the css style name for the toggle
  @method getStyle
  @return {string} the css class for this node's toggle