operator []= method
Implementation
@override
operator []=(String key, value) {
switch(key) {
case "contact": this.contact = value as String; break;
case "title": this.title = value as String; break;
case "body": this.body = value as String; break;
case "created": this.created = value as String; break;
default: wrapped[key] = value;
}
}