code: def stub_out_pmap(batch: ModuleType, count: int):
      # If we are using GPU or CPU stub out pmap with vmap to simulate multi-core.
      if count > 0:
  
          class xla_bridge_stub:
              def device_count(self) -> int:
                  return count
  
          platform = jax.default_backend()
          if platform == "gpu" or platform == "cpu":
              batch.pmap = _jit_vmap
              batch.xla_bridge = xla_bridge_stub()
  
imports: import dataclasses
  import itertools
  import logging
  import os
  from types import ModuleType
  from typing import Callable, Optional, Sequence
  from absl import flags
  from absl.testing import parameterized
  import jax
  from jax import config
  from jax import dtypes
  from jax import jit
  from jax import vmap
  import jax.numpy
  import numpy
label_desc: Use image node_id 12 for calling a global function with example usage: stub_out_pmap(batch, count) and returns: count