type LogLevel = 'error' | 'warn' | 'info' | 'debug';
interface LoggerOptions {
    readonly level?: LogLevel;
}
interface Logger {
    /**
     * Output debug message
     * @param msg any data to log
     */
    debug(...msg: any[]): void;
    /**
     * Output info message
     * @param msg any data to log
     */
    info(...msg: any[]): void;
    /**
     * Output warn message
     * @param msg any data to log
     */
    warn(...msg: any[]): void;
    /**
     * Output error message
     * @param msg any data to log
     */
    error(...msg: any[]): void;
    /**
     * Output log message
     * @param msg any data to log
     */
    log(level: LogLevel, ...msg: any[]): void;
    /**
     * Create a child logger instance
     */
    child(name: string): Logger;
}

export type { LogLevel, Logger, LoggerOptions };