code: def __getitem__(cls, item):
      return cls.reverse_lookup[item]
  
file_path: equinox/equinox/internal/_misc.py
imports: from collections.abc import Callable, Sequence
  from typing import Any, TypeVar
  import jax.lax
  import jax.numpy
  import jax.tree_util
  from jaxtyping import Array, PyTree, Scalar
  from .._eval_shape import filter_eval_shape
  from .._filters import is_array
  from ._nontraceable import nonbatchable
label_desc: Use image node_id 3 for calling the ContainerMeta obj's underlying member method code with example usage: obj.__getitem__(cls, item) and returns: cls