docstr: Expand all folders
docstr_tok: ["Expand","all","folders"]
code: def expand_all(self, event=None):
      """Expand all folders"""
      self.ExpandAll()
  
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 20 for calling the PathListCtrl obj's underlying member method code with example usage: obj.expand_all(event) without return types