/**
 * @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.
 */
import { MessagePayload } from '../interfaces/message-payload';
export declare enum MessageParameter {
    TYPE_OF_MSG = "firebase-messaging-msg-type",
    DATA = "firebase-messaging-msg-data"
}
export declare enum MessageType {
    PUSH_MSG_RECEIVED = "push-msg-received",
    NOTIFICATION_CLICKED = "notification-clicked"
}
export interface InternalMessage {
    [MessageParameter.TYPE_OF_MSG]: MessageType;
    [MessageParameter.DATA]: MessagePayload;
}