code: def test_exception_particle_number(orbitals, msg_match):
      """Test that the function `'particle_number'` throws an exception if the
      number of orbitals is less than zero."""
  
      with pytest.raises(ValueError, match=msg_match):
          qchem.particle_number(orbitals)
  
imports: import pytest
  import pennylane
  from pennylane import Identity, PauliZ
  from pennylane import numpy
  from pennylane import qchem
  from pennylane.operation import enable_new_opmath, disable_new_opmath
label_desc: Use image node_id 2 for calling a global function with example usage: test_exception_particle_number(orbitals, msg_match) without return types