code: def is_folder(self, idx):
      return self.GetItemText(idx) in self.folder_id_map
  
imports: import logging
  import os
  import sys
  import uuid
  from urllib.request import url2pathname
  from urllib.parse import urlparse
  import wx
  import wx.lib.scrolledpanel
  from cellprofiler_core.pipeline import ImageFile
  from cellprofiler_core.preferences import report_progress
label_desc: Use image node_id 35 for calling the PathListCtrl obj's underlying member method code with example usage: obj.is_folder(idx) and returns: unknown