code: def test_load_docked_ligand(self):
      docked_ligands, scores = docking_utils.load_docked_ligands(
          self.docked_ligands
      )
      assert len(docked_ligands) == 9
      assert len(scores) == 9
  
      for ligand, score in zip(docked_ligands, scores):
          xyz = rdkit_utils.get_xyz_from_mol(ligand)
          assert score < 0  # This is a binding free energy
          assert np.count_nonzero(xyz) > 0
  
file_path: deepchem/deepchem/utils/test/test_docking_utils.py
imports: import os
  import numpy
  import unittest
  from deepchem.utils import docking_utils
  from deepchem.utils import rdkit_utils
label_desc: Use image node_id 2 for calling the TestVinaUtils obj's underlying member method code with example usage: obj.test_load_docked_ligand() without return types