code: def test_fail_import_openfermion(monkeypatch):
      """Test if an ImportError is raised when openfermion is requested but not installed"""
  
      with monkeypatch.context() as m:
          m.setitem(sys.modules, "openfermion", None)
  
          with pytest.raises(
              ImportError, match="This feature requires openfermion"
          ):
              qml.qchem.convert._pennylane_to_openfermion(
                  np.array([0.1 + 0.0j, 0.0]),
                  [
                      qml.operation.Tensor(qml.PauliX(0)),
                      qml.operation.Tensor(
                          qml.PauliZ(0), qml.QuadOperator(0.1, wires=1)
                      ),
                  ],
              )
  
imports: import os
  import sys
  import pytest
  import pennylane
  from pennylane import numpy
  from pennylane import qchem
  from pennylane.operation import disable_new_opmath, enable_new_opmath
label_desc: Use image node_id 18 for calling a global function with example usage: test_fail_import_openfermion(monkeypatch) without return types