code: def GetIconName(self):
      if self.isfunction:
          return "python"
      else:
          return "folder"
  
imports: import os
  import sys
  import pyclbr
  from idlelib import PyShell
  from idlelib.WindowList import ListedToplevel
  from idlelib.TreeWidget import TreeNode, TreeItem, ScrolledCanvas
  from idlelib.configHandler import idleConf
label_desc: Use image node_id 3 for calling the ClassBrowserTreeItem obj's underlying member method code with example usage: obj.GetIconName() and returns: str, str