code: def test_strip_hydrogens(self):
      mol_xyz, mol_rdk = rdkit_utils.load_molecule(self.ligand_file)
      _ = MolecularFragment(mol_rdk.GetAtoms(), mol_xyz)
  
      # Test on RDKit
      _ = strip_hydrogens(mol_xyz, mol_rdk)
  
file_path: deepchem/deepchem/utils/test/test_fragment_utils.py
imports: import os
  import unittest
  import numpy
  from deepchem.utils import rdkit_utils
  from deepchem.utils.fragment_utils import get_contact_atom_indices
  from deepchem.utils.fragment_utils import merge_molecular_fragments
  from deepchem.utils.fragment_utils import get_partial_charge
  from deepchem.utils.fragment_utils import strip_hydrogens
  from deepchem.utils.fragment_utils import MolecularFragment
  from deepchem.utils.fragment_utils import AtomShim
label_desc: Use image node_id 4 for calling the TestFragmentUtil obj's underlying member method code with example usage: obj.test_strip_hydrogens() without return types