/**
 * @license
 * Copyright 2017 Google Inc.
 *
 * 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.
 */
export interface IidDetails {
    token: string;
    pushSet: string;
}
export declare class IidModel {
    getToken(senderId: string, subscription: PushSubscription, publicVapidKey: Uint8Array): Promise<IidDetails>;
    /**
     * Update the underlying token details for fcmToken.
     */
    updateToken(senderId: string, fcmToken: string, fcmPushSet: string, subscription: PushSubscription, publicVapidKey: Uint8Array): Promise<string>;
    /**
     * Given a fcmToken, pushSet and messagingSenderId, delete an FCM token.
     */
    deleteToken(senderId: string, fcmToken: string, fcmPushSet: string): Promise<void>;
}