export declare enum LogLevel {
    DEBUG = 0,
    INFO = 1,
    WARN = 2,
    ERROR = 3
}
export declare class Logger {
    private readonly level;
    constructor(level?: LogLevel);
    debug(message: string): void;
    info(message: string): void;
    warn(message: string): void;
    error(message: string, error?: Error): void;
}