class Aws::Plugins::Retries::RetryQuota

def release(capacity_amount)
  # Implementation note:  The release() method is called for
  # every API call.  In the common case where the request is
  # successful and we're at full capacity, we can avoid locking.
  # We can't exceed max capacity so there's no work we have to do.
  return if @available_capacity == @max_capacity
  @mutex.synchronize do
    @available_capacity += capacity_amount || NO_RETRY_INCREMENT
    @available_capacity = [@available_capacity, @max_capacity].min
  end
end