code: def __init__(self, items: List[T]):
      super().__init__(items)
      self.freeze()
  
imports: from typing import TypeVar, Sequence, List
  from frozenlist import FrozenList
label_desc: Use image node_id 1 to create a new frozenlist object from inherited base classes: _FrozenList, Sequence with example: obj = frozenlist(items)