code: def test_not_xyz_pennylane_to_openfermion(op):
      r"""Test if the conversion complains about non Pauli matrix observables"""
      _match = "Expected a Pennylane operator with a valid Pauli word representation,"
      with pytest.raises(ValueError, match=_match):
          qml.qchem.convert._pennylane_to_openfermion(
              np.array([0.1 + 0.0j, 0.0]),
              [
                  qml.operation.Tensor(qml.PauliX(0)),
                  op,
              ],
          )
  
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 7 for calling a global function with example usage: test_not_xyz_pennylane_to_openfermion(op) without return types