declare class Logger { private PREFIX; warn(message: string | number | object, ...args: unknown[]): void; log(message: string | number | object): void; error(message: string | number | object): void; info(message: string | number | object): void; count(message: string | number | object): void; debug(message: string | number | object): void; private _stringifyMessage; } export declare const logger: Logger; export declare const logMethod: (prefix: string) => MethodDecorator; export {};