toJson method
Implementation
Map<String, dynamic> toJson() {
final Map<String, dynamic> data = <String, dynamic>{};
data["url"] = url;
data["frame_width"] = frameWidth;
data["height"] = height;
data["width"] = width;
data["frame_height"] = frameHeight;
data["frames"] = frames;
data["columns"] = columns;
return data;
}