Added new methods and bug fix.

[iamarnas]

What's news...

• Updated readme file.
• Added new methods.
• Bug fix #7

  Bug

  Array of arrays are now supported:

  [[{ "isThisSupported": true }]]
  [{ "thisSupported": [{ "cool": true }] }]

  toString method

  Added toString() method to improve the debugging experience.

  @override
  String toString() {
  return 'Todos(userId: $userId, id: $id, title: $title, completed: $completed)';
  }

  copyWith method

  copyWith() method will make your life easier with @immutable classes.

  Todos copyWith({
  int userId,
  int id,
  String title,
  bool completed,
  }) {
  return Todos(
  userId: userId ?? this.userId,
  id: id ?? this.id,
  title: title ?? this.title,
  completed: completed ?? this.completed,
  );
  }

  Equality Operator

  Added equality operator == with less boilerplate syntax. It good if someone want create mutable classes like Equatable support only immutable classes. It give more flexibility for developers.

  
  @override
  bool operator ==(Object o) =>
  o is Todos &&
  identical(o.userId, userId) &&
  identical(o.id, id) &&
  identical(o.title, title) &&
  identical(o.completed, completed);

@override int get hashCode => hashValues(userId, id, title, completed);

## Freezed 
Added `Freezed` support to create advanced classes with less boilerplate code. 
> This little and simple syntax in the example support all methods above and all what can generate this extension. In short "All in One".
 ```dart
  @freezed
  abstract class Todos with _$Todos {
      const factory Todos({
         int userId,
         int id,
         String title,
         bool completed,
      }) = _Todos;

      factory Todos.fromJson(Map<String, dynamic> json) => _$TodosFromJson(json);
  } 

[hiranthaR]

@iamarnas thank you very much :slightly_smiling_face:

[iamarnas]

@hiranthaR Np ;), hope you like it. I have a question. Are _generateClassDefinition(); from the model_generator.ts are main function which convert json file and provide result to file?