code: def is_empty(self) -> bool:
      return self.value is EMPTY
  
imports: import dataclasses
  import functools
  import typing
  from abc import ABCMeta
  from functools import partial
  from typing import Any
  import jax
  import jax.tree_util
  from flax.experimental.nnx.nnx import reprlib
label_desc: Use image node_id 2 for calling the Variable obj's underlying member method code with example usage: obj.is_empty() and returns: unknown