code: def test__xla_dist_model_spawn_n_procs():
      n = int(os.environ["NUM_TPU_WORKERS"])
      try:
          _XlaDistModel.spawn(
              _test_xla_spawn_fn,
              args=(n, "xla"),
              kwargs_dict={},
              nproc_per_node=n,
          )
      except SystemExit:
          pass
  
file_path: ignite/tests/ignite/distributed/comp_models/test_xla.py
imports: import os
  import pytest
  import torch
  from ignite.distributed.comp_models import has_xla_support
label_desc: Use image node_id 4 for calling a global function with example usage: test__xla_dist_model_spawn_n_procs() without return types