code: public Cassandra.Client getRawClient(final String schema) {
          Cassandra.Client client = null;
          Object pooledConnection;
          pooledConnection = getConnection();
          client = (org.apache.cassandra.thrift.Cassandra.Client) getConnection(pooledConnection);
          try {
              client.set_cql_version(getCqlVersion());
          } catch (Exception e) {
              log.error("Error during borrowing a connection , Caused by: {}.", e);
              throw new KunderaException(e);
          } finally {
              releaseConnection(pooledConnection);
          }
          return client;
  
      }
docs: Returns raw cassandra client from thrift connection pool.
  
  @param schema
  schema or keyspace.
  @return raw cassandra client.