code: def __getitem__(self, item):
      return _ωUpdateRef(self.value, item, self.is_leaf)
  
imports: import operator
  from collections.abc import Callable
  from typing import Any, Optional, TYPE_CHECKING
  import jax
  import jax.tree_util
label_desc: Use image node_id 2 for calling the _ωUpdateHelper obj's underlying member method code with example usage: obj.__getitem__(item) and returns: _ωUpdateRef