Episode.fromJson constructor Null safety
Implementation
factory Episode.fromJson(Map<String, dynamic> json) => Episode(
id: json["id"],
name: json["name"],
airDate: json["air_date"],
episode: json["episode"],
characters: List<String>.from(json["characters"].map((x) => x)),
url: json["url"],
created: DateTime.parse(json["created"]),
);