import * as winston from "winston";
import { LogLevel } from "../constants/logging.mjs";
import { EnvironmentConfig } from "./environment-config.mjs";
/**
 * Wrap the Winston logger container, so we can get the same logger for each module.
 * @param label The label of the module we're logging
 * @return An instance of the logger
 */
export declare const loggerForLabel: (label?: string) => winston.Logger;
/**
 * @param moduleUrl Use {@link ImportMeta.url import.meta.url} for ESM modules to generate label
 * @return An instance of the logger
 */
export declare const loggerForModuleUrl: (moduleUrl: string) => winston.Logger;
/**
 * Wrap expensive operations, so we don't perform them for logging unless logging for the level is enabled
 * @param logger
 * @param level
 * @param messageFunc
 */
export declare const logWhenEnabled: (logger: winston.Logger, level: LogLevel, messageFunc: (loggerLevel: LogLevel) => string) => void;
/**
 * Sets the options to construct winston loggers and configures logging for unhandled errors
 * @param config Configuration determines the output transport streams
 * @returns The default global logger
 */
export declare const initializeLogging: (config: EnvironmentConfig) => winston.Logger;