code: def test_dftutils():
      system = {
          "type": "mol",
          "kwargs": {
              "moldesc": "H 0.86625 0 0; F -0.86625 0 0",
              "basis": "6-311++G(3df,3pd)",
          },
      }
      atomzs, atomposs = dqc.parse_moldesc(system["kwargs"]["moldesc"])
      mol = Mol(**system["kwargs"])
      qc = KS(mol, xc="lda_x").run()
      qcs = KSCalc(qc)
      a = qcs.energy()
      b = torch.tensor(-99.1360, dtype=torch.float64)
      assert torch.allclose(a, b)
  
imports: import pytest
label_desc: Use image node_id 1 for calling a global function with example usage: test_dftutils() without return types