docs: public void sendInteger2(int val) throws IOException {
      if (val < Short.MIN_VALUE || val > Short.MAX_VALUE) {
        throw new IOException("Tried to send an out-of-range integer as a 2-byte value: " + val);
      }
  
      int2Buf[0] = (byte) (val >>> 8);
      int2Buf[1] = (byte) val;
      pgOutput.write(int2Buf);
    }