toBytes method
Converts the MerkleDAGNode to its byte representation.
Note: This assumes data is already strictly formatted (e.g. valid UnixFS Data proto bytes).
If you are building a node, ensure data is correct.
Implementation
Uint8List toBytes() {
final pbNode = dag_proto.PBNode()..data = data;
pbNode.links.addAll(links.map((link) => link.toProto()));
return marshalDagPBNode(pbNode);
}