class BinanceRateLimitedError(Exception):
    """币安 418/429，IP 临时封禁。"""

    def __init__(self, retry_after_sec: int, path: str = ""):
        self.retry_after_sec = retry_after_sec
        self.path = path
        super().__init__(f"rate limited {retry_after_sec}s on {path}")