public int[][][][] eval(int[][][][] dest, NslInt4 a, NslInt4 b) {
   return eval(dest, a.getint4(), b.getint4());
 }
 public int[][][][] eval(int a, NslInt4 b) {
   return eval(a, b.getint4());
 }
 public int[][][][] eval(NslInt4 a, NslInt4 b) {
   return eval(a.getint4(), b.getint4());
 }
 public int[][][][] eval(NslInt4 a, int b) {
   return eval(a.getint4(), b);
 }