cdmDisconnect.spark_cdm
                        Disconnect the connection of the cdm object
cdmFromSpark            Create a 'cdm_reference' object from a
                        'sparklyr' connection.
createOmopTablesOnSpark
                        Create OMOP CDM tables
dropSourceTable.spark_cdm
                        Drop spark tables
insertTable.spark_cdm   Insert a table to a cdm object
mockSparkCdm            creates a cdm reference to local spark OMOP CDM
                        tables
