dku_get_sparklyr_config
                        Builds additional spark_config items for DSS
                        integration
dku_spark_connect       Connects to Spark, using DSS configuration
spark_read_dku_dataset
                        Loads a DSS dataset as a sparklyr dataframe
spark_write_dku_dataset
                        Saves a sparklyr dataframe as a DSS dataset
spark_write_dku_dataset_schema
                        Sets dataset schema from dataframe schema
