prep function
Implementation
PrepReturnType prep(dynamic val, String key, TTNode node, String soul) {
return PrepReturnType.from(
key: soul,
dot: key,
col: parse(val),
forward: node.nodeMetaData != null
? node.nodeMetaData!.forward != null
? node.nodeMetaData!.forward![key] ?? 0
: 0
: 0,
);
}