可以这样写：   

writer = ddb.MultithreadedTableWriter(host="183.134.101.143", port=8911, userId="admin", password="DolphinDB@123", dbPath="",
                                     tableName ="getStreamEngine('reactiveDemo')", useSSL=False, enableHighAvailability=False, highAvailabilitySites=[],
                                     batchSize=10000, throttle=1, threadCount=1)