code: @NotNull
      public static Stream<Long> rangeClosed(final long from, final long to) {
          return LongStream.rangeClosed(from, to).boxed();
      }
docs: Creates a {@code Stream<Long>} from closed range
  (from {@code from} inclusive to {@code to} inclusive and incremental step {@code 1}).
  
  @param from  the initial value (inclusive)
  @param to  the upper bound (inclusive)
  @return the new stream