docs: @Override
    public void write(TextWriterStream out, String label, int[] v) {
      StringBuilder buf = new StringBuilder();
      if(label != null) {
        buf.append(label).append('=');
      }
      if(v != null) {
        FormatUtil.formatTo(buf, v, " ");
      }
      out.inlinePrintNoQuotes(buf.toString());
    }