code: def wrap_list(item):
      
      if item is None:
          return []
      elif isinstance(item, list):
          return item
      elif isinstance(item, (tuple, set)):
          return list(item)
      else:
          return [item]
docs: Returns an object as a list.
  
      If the object is a list, it is returned directly. If it is a tuple or set, it
      is returned as a list. If it is another object, it is wrapped in a list and
      returned.