code: function setFontFamily(fontFamily) {
          var editor = EditorManager.getCurrentFullEditor();
  
          if (currFontFamily === fontFamily) {
              return;
          }
  
          _removeDynamicFontFamily();
          if (fontFamily) {
              _addDynamicFontFamily(fontFamily);
          }
  
          exports.trigger("fontFamilyChange", fontFamily, currFontFamily);
          currFontFamily = fontFamily;
          prefs.set("fontFamily", fontFamily);
  
          if (editor) {
              editor.refreshAll();
          }
      }
docs: Font family setter to set the font family for the document editor
  @param {string} fontFamily The font family to be set.  It can be a string with multiple comma separated fonts