Values.ProgressSourceThis data type contains information about progress of an operation.
type nonrec t = {bytesScanned : BytesScanned.t option;The current number of object bytes scanned.
*)bytesProcessed : BytesProcessed.t option;The current number of uncompressed object bytes processed.
*)bytesReturned : BytesReturned.t option;The current number of bytes of records payload data returned.
*)}