code: def find_invisible_above(self):
      # Returns the index of the invisible item above the last index.
      first, _ = self.GetFirstChild(self.root_id)
      if not first.IsOk() or self.IsVisible(first):
          return first
      idx = self.GetFirstVisibleItem()
      if not idx.IsOk():
          return idx
      parent = self.GetItemParent(idx)
      target_idx = parent
      assert not self.IsVisible(parent)
      child_item, cookie = self.GetFirstChild(parent)
      while child_item.IsOk():
          if self.IsVisible(child_item):
              break
          target_idx = child_item
          child_item, cookie = self.GetNextChild(parent, cookie)
      return target_idx
  
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 33 for calling the PathListCtrl obj's underlying member method code with example usage: obj.find_invisible_above() and returns: target_idx, first, idx