/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 { MessageType, Message as MessagePB } from '../../proto/apache/rocketmq/v2/definition_pb';
import { PublishingSettings } from '../producer';
import { MessageQueue } from '../route';
import { Message, MessageOptions } from './Message';
export declare class PublishingMessage extends Message {
    readonly messageId: string;
    readonly messageType: MessageType;
    constructor(options: MessageOptions, publishingSettings: PublishingSettings, txEnabled: boolean);
    /**
     * This method should be invoked before each message sending, because the born time is reset before each
     * invocation, which means that it should not be invoked ahead of time.
     */
    toProtobuf(namespace: string, mq: MessageQueue): MessagePB;
}