class AssignedEmployee { AssignedEmployee({ this.id, this.name, }); AssignedEmployee.fromJson(dynamic json) { id = json['id']; name = json['name']; } String? id; // Now nullable String? name; // Now nullable AssignedEmployee copyWith({ String? id, // Parameters are now nullable String? name, }) => AssignedEmployee( id: id ?? this.id, name: name ?? this.name, ); Map toJson() { final map = {}; map['id'] = id; map['name'] = name; return map; } }