toJson method
Implementation
Map<String, dynamic> toJson() {
final List<int> sortedIds = nodes.keys.toList()..sort();
return <String, dynamic>{
'routeStack': List<String>.from(routeStack),
'nodes': <String, dynamic>{
for (final int id in sortedIds) id.toString(): nodes[id]!.toJson(),
},
'errors': errors.map((RuntimeError e) => e.toJson()).toList(),
};
}