toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (description1 != null) 'description1': description1!,
if (description2 != null) 'description2': description2!,
if (headline != null) 'headline': headline!,
if (thumbnail != null) 'thumbnail': thumbnail!,
if (video != null) 'video': video!,
};