DetailViewport.fromJson constructor
Implementation
DetailViewport.fromJson(Map<String, dynamic> json) {
if (json["northeast"] is Map)
this.northeast =
json["northeast"] == null ? null : DetailNortheast.fromJson(json["northeast"]);
if (json["southwest"] is Map)
this.southwest =
json["southwest"] == null ? null : DetailSouthwest.fromJson(json["southwest"]);
}