code: def physical_resource_axes(self) -> set[ResourceAxisName]:
      return set(self.physical_mesh.axis_names)
  
imports: from __future__ import annotations
  import collections
  from collections.abc import Hashable, Sequence
  import contextlib
  import functools
  import math
  import threading
  from typing import Any, NamedTuple
  import numpy
  from jax._src import config
  from jax._src import xla_bridge
  from jax._src import util
  from jax._src.lib import xla_client
label_desc: Use image node_id 3 for calling the ResourceEnv obj's underlying member method code with example usage: obj.physical_resource_axes() and returns: set