/*!
 *
 * 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 { Logger } from 'winston';
declare type LoggerLevelAware = Logger & {
    _isDebugEnabled: boolean;
    _isInfoEnabled: boolean;
};
export declare function createLogger(name: string): LoggerLevelAware;
/**
 * Wraps a logger method so it emits at most once per `intervalMs`, no matter how often it is called.
 *
 * When the SkyWalking backend is unreachable the report/heartbeat loops fail on every tick. Logging each
 * failure with the full gRPC error (a multi-KB stack) lets the records accumulate in winston's internal
 * stream buffer faster than the transport drains them, eventually exhausting the heap. This collapses a
 * storm of identical failures into a single periodic line that carries the suppressed count, and reduces
 * an Error to its `code`/`message` so no stack is retained.
 */
export declare function throttled(logger: Logger, level: 'error' | 'warn' | 'info', intervalMs: number): (message: string, error?: unknown) => void;
export {};