card_model.dart

import 'package:json_annotation/json_annotation.dart';

part 'card_model.g.dart';

@JsonSerializable(fieldRename: FieldRename.snake)
class CardModel {
  String id;
  String author;
  int width;
  int height;
  String url;
  String downloadUrl;

  CardModel({
    this.id,
    this.author,
    this.width,
    this.height,
    this.url,
    this.downloadUrl,
  });

  CardModel fromJson(Map<String, Object> json) => _$CardModelFromJson(json);

  factory CardModel.fromJson(Map<String, Object> json) => _$CardModelFromJson(json);

  Map<String, Object> toJson() => _$CardModelToJson(this);
}

pagination_model.dart

class PaginationModel {
  int page;
  int limit;

  PaginationModel({this.page, this.limit});
}