/**
 * @license
 * Copyright 2019 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { _FirebaseNamespace } from '@firebase/app-types/private';
import { FirebaseInstallations } from '@firebase/installations-types';
export declare function registerInstallations(instance: _FirebaseNamespace): void;
/**
 * Define extension behavior of `registerInstallations`
 */
declare module '@firebase/app-types' {
    interface FirebaseNamespace {
        installations(app?: FirebaseApp): FirebaseInstallations;
    }
    interface FirebaseApp {
        installations(): FirebaseInstallations;
    }
}