code: @Contract(pure = true)
  	@NotNull
  	public static Promise<?> some(int number) {
  		if (number == 0) return Promise.of(emptyList());
  
  		return Promise.ofException(new StacklessException(Promises.class,
  				"There are no promises to be complete"));
  	}
docs: Returns a {@link CompleteExceptionallyPromise} with {@link StacklessException},
  since this method doesn't accept any {@code Promise}s
  
  @see #some(Iterator, int)