docs: private void writeByteBufferFull(ByteBuffer buf, boolean withHeader)
    {
      if (withHeader) {
        writeByteBufferSerdeHeader(buf, FULL_ENCODING_MODE);
      }
  
      writeByteBufferCommonFields(buf);
  
      buf.asLongBuffer().put(histogram);
      buf.position(buf.position() + Long.BYTES * histogram.length);
    }