code: public static <T> SetRandomizer<T> aNewSetRandomizer(final Randomizer<T> delegate, final int nbElements) {
          return new SetRandomizer<>(delegate, nbElements);
      }
docs: Create a new {@link SetRandomizer} that will generate a {@link Set} with a fixed number of elements.
  
  @param delegate   The {@link Randomizer} used to generate each element
  @param nbElements The number of elements to generate
  @param <T>        the type of elements
  @return a new {@link SetRandomizer}