import { LoggerService } from '@nestjs/common';
import { ConfigService } from '@nestjs/config';
export declare class AppLoggerService implements LoggerService {
    private configService;
    private context?;
    private readonly logLevels;
    constructor(configService: ConfigService);
    setContext(context: string): this;
    log(message: any, context?: string): void;
    error(message: any, trace?: string, context?: string): void;
    warn(message: any, context?: string): void;
    debug(message: any, context?: string): void;
    verbose(message: any, context?: string): void;
    private isLevelEnabled;
    private printMessage;
    private formatMessage;
}