code: def test_importorskip_ci(monkeypatch):
      """Test ``importorskip`` run on CI machine with non-existent module, which should fail."""
      monkeypatch.setenv("ARVIZ_CI_MACHINE", 1)
      with pytest.raises(ModuleNotFoundError):
          importorskip("non-existent-function")
  
imports: import pytest
  from _pytest.outcomes import Skipped
  from ..helpers import importorskip
label_desc: Use image node_id 2 for calling a global function with example usage: test_importorskip_ci(monkeypatch) without return types