code: private void setWedge(IBond bond, IAtom end, IBond.Stereo style) {
          if (!bond.getEnd().equals(end))
              bond.setAtoms(new IAtom[]{bond.getEnd(), bond.getBegin()});
          bond.setStereo(style);
      }
docs: Sets a wedge bond, because wedges are relative we may need to flip
  the storage order on the bond.
  
  @param bond the bond
  @param end the expected end atom (fat end of wedge)
  @param style the wedge style