class Dog {
  final int id;
  final String name;
  final int age;

  Dog({this.id, this.name, this.age});

  Map<String, dynamic> toMap() {
    return {
      'id': id,
      'name': name,
      'age': age,
    };
  }

  static fromMap(Map<String, dynamic> map) {
    return new Dog(id: map['id'], name: map['name'], age: map['age']);
  }

  @override
  String toString() {
    return 'Dados do cachorro $id - Nome: $name, Idade: $age';
  }
}