presto-kinesis/src/main/java/io/prestosql/plugin/kinesis/KinesisConfig.java/KinesisConfig/setIteratorNumber
class KinesisConfig:    @Config("kinesis.iterator-number")
    @ConfigDescription("Checkpoint iteration number")
    public KinesisConfig setIteratorNumber(int iteratorNumber)
    {
        this.iteratorNumber = iteratorNumber;
        return this;
    }