code: def _convert_eq(self, eq):
          
          rename = dict(enumerate(self.index))
          eq['eq_sets'] = {rename[k]: {rename[x] for x in v}
                           for k, v in eq['eq_sets'].items()}
          eq['sym_ops'] = {rename[k]: {rename[x]: v[x] for x in v}
                           for k, v in eq['sym_ops'].items()}
          try:
              sym_mol = self.from_pymatgen_molecule(eq['sym_mol'])
              sym_mol.index = self.index
              eq['sym_mol'] = sym_mol._to_numeric()
          except KeyError:
              pass
docs: WORKS INPLACE on eq