-- | The sequence number of the data record in the shard from which to start
-- reading from.
gsiStartingSequenceNumber :: Lens' GetShardIterator (Maybe Text)
gsiStartingSequenceNumber =
    lens _gsiStartingSequenceNumber
        (\s a -> s { _gsiStartingSequenceNumber = a })
gsiStartingSequenceNumber :: Lens' GetShardIterator (Maybe Text)
gsiStartingSequenceNumber =
    lens _gsiStartingSequenceNumber
        (\s a -> s { _gsiStartingSequenceNumber = a })
gsiStartingSequenceNumber =
    lens _gsiStartingSequenceNumber
        (\s a -> s { _gsiStartingSequenceNumber = a })