private func getFeeds() {
        let db = Firestore.firestore()
        let usersCollection = db.collection(DataCollections.users)
            .document()
            .collection(DataCollections.newsFeed)
            .order(by: "dateAdded", descending: true)

        usersCollection.getDocuments { (<#QuerySnapshot?#>, <#Error?#>) in
            <#code#>
        }
    }