code: private boolean isStereoBond(IBond bond) {
          return bond.getStereo() != IBond.Stereo.NONE && bond.getStereo() != (IBond.Stereo) CDKConstants.UNSET
                  && bond.getStereo() != IBond.Stereo.E_Z_BY_COORDINATES;
      }
docs: Check to see if a bond is a stereo bond.
  
  @param bond the bond to check
  @return true if the bond has stero information