import { LoggerService, LogLevel } from "@nestjs/common";
import "winston-mongodb";
import "winston-daily-rotate-file";
import { EventEmitter2 } from "@nestjs/event-emitter";
export declare class LogService implements LoggerService {
    protected context?: string;
    protected eventEmitter?: EventEmitter2;
    private logger;
    private module;
    private readonly monitoringConfig;
    constructor();
    constructor(context: string);
    constructor(context: string, eventEmitter: EventEmitter2);
    setContext(context: string): LogService;
    setModule(module: string): LogService;
    log(message: string, ...optionalParams: any[]): void;
    debug(message: string, ...optionalParams: any[]): void;
    error(message: string, ...optionalParams: any[]): void;
    warn(message: string, ...optionalParams: any[]): void;
    verbose(message: string, ...optionalParams: any[]): void;
    setLogLevels(levels: LogLevel[]): void;
    private setupLogger;
    private getModule;
    private createTransports;
}