import sys

def log(message: str, level: str = "info"):
    """
    Логирует сообщения в консоль.
    """
    levels = {
        "info": "[INFO]",
        "warning": "[WARNING]",
        "error": "[ERROR]",
    }
    prefix = levels.get(level, "[UNKNOWN]")
    print(f"{prefix} {message}", file=sys.stderr if level == "error" else sys.stdout)