code: def _create_topology(container, comp_to_add, n_compounds):
      
  
      for comp, m_compound in zip(comp_to_add, n_compounds):
              for _ in range(m_compound):
                  container.add(clone(comp))
      return container
docs: Return updated mBuild compound with new coordinates.
  
      Parameters
      ----------
      container : mb.Compound, required
          Compound containing the updated system generated by PACKMOL.
      comp_to_add : mb.Compound or list of mb.Compounds, required
          Compound(s) to add to the container.
      container : int or list of int, required
          Amount of comp_to_add to container.
  
      Return
      ------
      container : mb.Compound
          Compound with added compounds from PACKMOL.