code: def test_scf_leaves_random_seed_unchanged():
      """Tests that the scf function leaves the global numpy sampling state unchanged."""
  
      symbols = ["H", "H"]
      geometry = np.array(
          [[0.0, 0.0, 0.0], [0.0, 0.0, 1.0]], requires_grad=False
      )
      alpha = np.array(
          [
              [3.42525091, 0.62391373, 0.1688554],
              [3.42525091, 0.62391373, 0.1688554],
          ],
          requires_grad=True,
      )
      mol = qchem.Molecule(symbols, geometry, alpha=alpha)
      args = [alpha]
  
      initial_numpy_state = np.random.get_state()
      qchem.scf(mol)(*args)
      final_numpy_state = np.random.get_state()
  
      assert initial_numpy_state[0] == final_numpy_state[0]
      assert np.all(initial_numpy_state[1] == final_numpy_state[1])
  
file_path: pennylane/tests/qchem/test_hartree_fock.py
imports: import pytest
  import pennylane
  from pennylane import numpy
  from pennylane import qchem
label_desc: Use image node_id 1 for calling a global function with example usage: test_scf_leaves_random_seed_unchanged() without return types