Evals with a deploy gate

Answer A someone who understood the problem

class Limiter:
    def __init__(self, rate, per):
        self._buckets = TTLCache(ttl=per * 2)
        self._lock = asyncio.Lock()

    async def take(self, key):
        async with self._lock:
            b = self._buckets.get(key) or Bucket(rate, per)
            return b.consume(monotonic())

Answer B looks fine, is not

counts = 

def take(key):
    now = time.time()
    window = int(now // 60)
    hits = counts.get((key, window), 0)
    if hits >= 10:
        return False
    counts[(key, window)] = hits + 1
    return True