import { LoggerService } from '@nestjs/common';
export declare class FileLoggerService implements LoggerService {
    private readonly logDir;
    constructor();
    private writeLog;
    log(message: string): void;
    error(message: string, trace?: string): void;
    warn(message: string): void;
    debug(message: string): void;
    verbose(message: string): void;
    custom(fileName: string, message: string): void;
}