docs: protected void writeTerminal(Encoder encoder) throws IOException {
      if (verbose != null) {
        verbose.println(String.format("Writing forward to end from %s to %s", encoder.fromNode.getDebugString(), encoder.node.getDebugString()));
      }
      encoder.out.writeVarShort((short) (encoder.node.getDepth() - encoder.fromNode.getDepth()), 3);
      encoder.out.write(encoder.fromNode.bitsTo(encoder.node));
      encoder.out.writeVarShort((short) 0, 3);
    }