pyflink.datastream.data_stream.DataStream.uid# DataStream.uid(uid: str) → pyflink.datastream.data_stream.DataStream[source]# Sets an ID for this operator. The specified ID is used to assign the same operator ID across job submissions (for example when starting a job from a savepoint). Important: this ID needs to be unique per transformation and job. Otherwise, job submission will fail. Parameters uid – The unique user-specified ID of this transformation. Returns The operator with the specified ID.