code: def test_cli_torchrun_defaults(monkeypatch, fake_script):
      torchrun_mock = Mock()
      monkeypatch.setattr(torch.distributed, "run", torchrun_mock)
      with pytest.raises(SystemExit) as e:
          _run_model.main([fake_script])
      assert e.value.code == 0
      torchrun_mock.main.assert_called_with(
          [
              "--nproc_per_node=1",
              "--nnodes=1",
              "--node_rank=0",
              "--master_addr=127.0.0.1",
              "--master_port=29400",
              fake_script,
          ]
      )
  
imports: import contextlib
  import os
  import subprocess
  from io import StringIO
  from unittest import mock
  from unittest.mock import Mock
  import pytest
  import torch.distributed.run
  from lightning.fabric.cli import _get_supported_strategies, _run_model
  from lightning_utilities.core.imports import ModuleAvailableCache
  from tests_fabric.helpers.runif import RunIf
label_desc: Use image node_id 11 for calling a global function with example usage: test_cli_torchrun_defaults(monkeypatch, fake_script) without return types