getSubCollectionRef<T extends FireStoreDoc> abstract method
CollectionReference<T>
getSubCollectionRef<T extends FireStoreDoc>()
a method that returns a CollectionReference object for a sub collection of a Firestore document located at a specified path, with a specified fromFirestore function to convert Firestore documents to objects of type T.
Implementation
CollectionReference<T> getSubCollectionRef<T extends FireStoreDoc>(
String collectionPath,
String docPath,
String subCollection,
FromFirestore<T> fromFirestore,
);