code: def filter(self):
      filtered_items = [
          item
          for item in self.initial_items
          if re.search(self.search_bar.text().lower(), item.lower())
      ]
  
      self.set_items(filtered_items)
  
file_path: PandasGUI/pandasgui/widgets/searchable_list.py
imports: import re
  from PyQt5 import QtWidgets
label_desc: Use image node_id 2 for calling the SearchableListWidget obj's underlying member method code with example usage: obj.filter() without return types