docstr: Test that the gradient of the Hartree-Fock energy wrt differentiable parameters is
  correct.
docstr_tok: ["Test","that","the","gradient","of","the","Hartree-Fock","energy","wrt","differentiable","parameters","is","correct","."]
code: def test_hf_energy_gradient(self, symbols, geometry, g_ref):
      r"""Test that the gradient of the Hartree-Fock energy wrt differentiable parameters is
      correct."""
      import jax
  
      mol = qchem.Molecule(symbols, geometry)
      args = [jax.numpy.array(mol.coordinates)]
      g = jax.grad(qchem.hf_energy(mol))(*args)
      g_ref = jax.numpy.array(g_ref)
  
      assert np.allclose(g, g_ref)
  
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 the TestJax obj's underlying member method code with example usage: obj.test_hf_energy_gradient(symbols, geometry, g_ref) without return types