code: public static Func1<Iterable<Byte>, byte[]> toBytes() {
          return new Func1<Iterable<Byte>, byte[]>() {
              @Override
              public byte[] call(Iterable<Byte> value) {
                  return new QuickNumberArray(value).toBytes();
              }
          };
      }
docs: Returns a method that can be used with {@link solid.stream.Stream#collect(Func1)}
  to convert an iterable stream of {@link Number} type into a primitive byte[] array.
  
  @return a method that converts an iterable stream of {@link Number} type into a primitive byte[] array.