code: def _GetSubList(self):
      sub_list = self.__item._GetSubList()
      return list(map(remote_object_tree_item, sub_list))
  
file_path: cpython/Lib/idlelib/debugobj_r.py
imports: from idlelib import rpc
label_desc: Use image node_id 3 for calling the WrappedObjectTreeItem obj's underlying member method code with example usage: obj._GetSubList() and returns: list