/**
 * 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 { RetryPolicy as RetryPolicyPB } from '../../proto/apache/rocketmq/v2/definition_pb';
import { RetryPolicy } from './RetryPolicy';
export declare class ExponentialBackoffRetryPolicy implements RetryPolicy {
    #private;
    constructor(maxAttempts: number, initialBackoff?: number, maxBackoff?: number, backoffMultiplier?: number);
    static immediatelyRetryPolicy(maxAttempts: number): ExponentialBackoffRetryPolicy;
    getMaxAttempts(): number;
    getNextAttemptDelay(attempt: number): number;
    inheritBackoff(retryPolicy: RetryPolicyPB): RetryPolicy;
    toProtobuf(): RetryPolicyPB;
}