getScheme method Null safety

JsonSchema getScheme(
  1. dynamic json,
  2. SchemaFinder find
)

Implementation

JsonSchema getScheme(dynamic json, SchemaFinder find) => map(
      ref: (_) => find(_.name),
      union: (_) => Ref(json[_.key]).getScheme(json, find),
      // orElse: () => throw StateError("Can't getEntity on $runtimeType"),
    );