import winston, { transport } from "winston";
import { ILogger, ILogService, LogLevel } from "../types";
type WinstonProperties = {
    level?: LogLevel;
    [key: string]: any;
};
type FactoryOption<T> = T | ((label: string, properties?: WinstonProperties) => T);
export type WinstonLogServiceOptions = {
    level?: FactoryOption<LogLevel>;
    properties?: FactoryOption<WinstonProperties>;
    transports?: FactoryOption<transport | transport[]>;
};
export declare class WinstonLogService implements ILogService {
    protected options?: WinstonLogServiceOptions | undefined;
    constructor(options?: WinstonLogServiceOptions | undefined);
    createLogger(label: string, properties?: WinstonProperties): ILogger;
    protected _createConsoleFormat(label: string, properties?: (label: string) => any): winston.Logform.Format;
}
export {};