Testing is complete!! And a nice build runner script to boot

shared_models/lib/jwt.dart

@@ -0,0 +1,17 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'jwt.g.dart';
+
+@JsonSerializable()
+class JWTBody {
+  String uuid;
+  String roomUuid;
+  int iat;
+  int exp;
+
+  JWTBody({required this.uuid, required this.roomUuid, required this.iat, required this.exp});
+
+  factory JWTBody.fromJson(Map<String, dynamic> json) => _$JWTBodyFromJson(json);
+
+  Map<String, dynamic> toJson() => _$JWTBodyToJson(this);
+}