collection method
Returns a reference to a collection using its class.
Implementation
DatabaseReference collection(Type type, { String? subcollection }) {
final String? className = RDB.classNames[type];
if (className == null) {
throw UnsupportedError('No class name found for type: $type. Consider re-generating Firestorm data classes.');
}
return RDB.instance.ref(RDB.constructPathForClass(className, subcollection: subcollection));
}