presto-cassandra/src/main/java/io/prestosql/plugin/cassandra/CassandraClientConfig.java/CassandraClientConfig/setSpeculativeExecutionDelay
class CassandraClientConfig:    @Config("cassandra.speculative-execution.delay")
    public CassandraClientConfig setSpeculativeExecutionDelay(Duration speculativeExecutionDelay)
    {
        this.speculativeExecutionDelay = speculativeExecutionDelay;
        return this;
    }