import * as types from '@firebase/database-types';
declare module '@firebase/app-compat' {
    interface FirebaseNamespace {
        database?: {
            (app?: FirebaseApp): types.FirebaseDatabase;
            enableLogging: typeof types.enableLogging;
            ServerValue: types.ServerValue;
            Database: typeof types.FirebaseDatabase;
        };
    }
    interface FirebaseApp {
        database?(): types.FirebaseDatabase;
    }
}