-- | The duration filter value, specified in years or seconds. Use this parameter
-- to show only reservations for this duration.
--
-- Valid Values: '1 | 3 | 31536000 | 94608000'
drcnDuration :: Lens' DescribeReservedCacheNodes (Maybe Text)
drcnDuration = lens _drcnDuration (\s a -> s { _drcnDuration = a })
drcnDuration :: Lens' DescribeReservedCacheNodes (Maybe Text)
drcnDuration = lens _drcnDuration (\s a -> s { _drcnDuration = a })
drcnDuration = lens _drcnDuration (\s a -> s { _drcnDuration = a })