code: public static <S> PAreaSizeBDGenerator<S> create()
    {
      final LongGenerator gen = new LongGenerator(0L, Long.MAX_VALUE);
      return new PAreaSizeBDGenerator<>(() -> new BigDecimal(gen.next().toString()));
    }
docs: @param <S> A phantom type parameter indicating the coordinate space of the
  area
  
  @return A generator initialized with useful defaults