import Firebase from 'firebase';
export declare type Query = Firebase.firestore.Query;
export declare type CollectionRef = Firebase.firestore.CollectionReference;
export interface Doc {
    id: string;
    data: Firebase.firestore.DocumentData | undefined;
}
export declare type UseCollectionData = Doc[] | string[];
export declare type UseCollectionHook = [UseCollectionData, boolean];
export declare type UseDocHook = [Doc | null, boolean];
export declare type DocumentSnapshot = Firebase.firestore.DocumentSnapshot;
export declare type QuerySnapshot = Firebase.firestore.QuerySnapshot;
export declare type QueryDocumentSnapshot = Firebase.firestore.QueryDocumentSnapshot;
export declare type DocumentReference = Firebase.firestore.DocumentReference;
export declare type FirestoreError = Firebase.firestore.FirestoreError;
export declare type CurrentUser = Firebase.User | null;