Consume an amount for a given key.

        Non-default rate/capacity can be given to override Throttler defaults.

        Returns:
            bool: whether the units could be consumed

def consume(self, key, amount=1, rate=None, capacity=None, **kwargs):
        """Consume an amount for a given key.

        Non-default rate/capacity can be given to override Throttler defaults.

        Returns:
            bool: whether the units could be consumed
        """
        bucket = self.get_bucket(key, rate, capacity, **kwargs)
        return bucket.consume(amount)