export declare const CHAT_LOG_FILE: string;
export declare class Logger {
    private readonly instance;
    constructor();
    log(message: string): void;
    info(message: string): void;
    warn(message: string, ex?: any): void;
    debug(message: string): void;
    error(message: string, error?: Error): void;
    chat(message: string): void;
    prompt(message: string): void;
}