toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (baseVersion != null) 'baseVersion': baseVersion!,
if (delete != null) 'delete': delete!,
if (insert != null) 'insert': insert!,
if (propertyMask != null) 'propertyMask': propertyMask!,
if (update != null) 'update': update!,
if (updateTime != null) 'updateTime': updateTime!,
if (upsert != null) 'upsert': upsert!,
};