presto-cassandra/src/main/java/io/prestosql/plugin/cassandra/CassandraClientConfig.java/CassandraClientConfig/setDcAwareUsedHostsPerRemoteDc
class CassandraClientConfig:    @Config("cassandra.load-policy.dc-aware.used-hosts-per-remote-dc")
    public CassandraClientConfig setDcAwareUsedHostsPerRemoteDc(Integer dcAwareUsedHostsPerRemoteDc)
    {
        this.dcAwareUsedHostsPerRemoteDc = dcAwareUsedHostsPerRemoteDc;
        return this;
    }