docs: def filter_input(keys, raw):
      """Adds fancy mouse wheel functionality and VI navigation to ListBox"""
      if len(keys) == 1:
          if keys[0] in UI.keys['up']:
              keys[0] = 'up'
          elif keys[0] in UI.keys['down']:
              keys[0] = 'down'
          elif len(keys[0]) == 4 and keys[0][0] == 'mouse press':
              if keys[0][1] == 4:
                  keys[0] = 'up'
              elif keys[0][1] == 5:
                  keys[0] = 'down'
      return keys