def decrement(amount = 1, time: Time.now)
      limits.all? { |limit| limit.decrement(amount, time: time) }
    end
def decrement(amount = 1, time: Time.now)
      limits.all? { |limit| limit.decrement(amount, time: time) }
    end
Decrement the limits by the given amount.

 @param amount [Integer] amount to decrement by
 @param time [Time] optional time of decrement
 @return [true]