presto-cassandra/src/main/java/io/prestosql/plugin/cassandra/CassandraClientConfig.java/CassandraClientConfig/setConsistencyLevel
class CassandraClientConfig:    @Config("cassandra.consistency-level")
    public CassandraClientConfig setConsistencyLevel(ConsistencyLevel level)
    {
        this.consistencyLevel = level;
        return this;
    }