code: def test_distrib_xla_nprocs(xmp_executor):
      n = int(os.environ["NUM_TPU_WORKERS"])
      xmp_executor(_test_distrib_xla_nprocs, args=(), nprocs=n)
  
imports: import os
  import numpy
  import pytest
  import torch
  import ignite.distributed
  from ignite.contrib.metrics.regression import MaximumAbsoluteError
  from ignite.engine import Engine
  from ignite.exceptions import NotComputableError
label_desc: Use image node_id 14 for calling a global function with example usage: test_distrib_xla_nprocs(xmp_executor) without return types