code: def _to_list(item, name, expect_type=str):
      if isinstance(item, list):
          return item
      if item is None:
          return []
      _check_type(item, name, expect_type)
      return [item]
  
label_desc: Use image node_id 1 for calling a global function with example usage: _to_list(item, name, expect_type) and returns: list, item, list