code: def _test_native_distrib_single_node_launch_tool(
      backend,
      device,
      local_rank,
      world_size,
      init_method=None,
      **kwargs,
  ):
      import os
  
      rank = local_rank
      os.environ["RANK"] = f"{rank}"
  
      idist.initialize(backend, init_method=init_method, **kwargs)
      _test_distrib_config(
          local_rank,
          backend,
          world_size,
          device,
          rank,
          true_init_method=init_method,
      )
      idist.finalize()
  
imports: import os
  import pytest
  import torch
  import torch.distributed
  from packaging.version import Version
  import ignite.distributed
  from ignite.distributed.utils import has_native_dist_support
  from tests.ignite.distributed.utils import _test_distrib__get_max_length, _test_distrib_all_gather, _test_distrib_all_gather_group, _test_distrib_all_reduce, _test_distrib_all_reduce_group, _test_distrib_barrier, _test_distrib_broadcast, _test_distrib_config, _test_distrib_new_group, _test_distrib_one_rank_only, _test_distrib_one_rank_only_with_engine, _test_sync
label_desc: Use image node_id 1 for calling a global function with example usage: _test_native_distrib_single_node_launch_tool(backend, device, local_rank, world_size, init_method) without return types