import { CollectionGroup, Query } from 'firebase-admin/firestore';
import { UnimplementedCollectionGroup } from './base/unimplemented_collection_group';
import { FakeCollectionRef } from './fake_collection_ref';
export declare class FakeCollectionGroup<T> extends UnimplementedCollectionGroup<T> implements CollectionGroup<T> {
    private _collection;
    constructor(_collection: FakeCollectionRef<T>);
    get(): Promise<FirebaseFirestore.QuerySnapshot<T>>;
    where(fieldPath: string | FirebaseFirestore.FieldPath, opStr: FirebaseFirestore.WhereFilterOp, value: any): Query<T>;
    where(filter: FirebaseFirestore.Filter): Query<T>;
}