toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (extraLarge != null) 'extraLarge': extraLarge!,
if (large != null) 'large': large!,
if (medium != null) 'medium': medium!,
if (small != null) 'small': small!,
if (smallThumbnail != null) 'smallThumbnail': smallThumbnail!,
if (thumbnail != null) 'thumbnail': thumbnail!,
};