我是Scala新手，正在使用方法def过程，但是遇到了构建错误，如“IOResult类中的方法wasSuccessful已被弃用（自2.6.0起）：如果sftpResult.wasSuccessful =〉"，则状态总是设置为Success（Done）case Success（（sftpResult，updateList））。我的问题是如何在我的代码中实现它？如果这个问题看起来很愚蠢，我道歉。

override def process(changedAfter: Option[ZonedDateTime], changedBefore: Option[ZonedDateTime])
                        (implicit fc: FlowContext): Future[(IOResult, Seq[Operation.Value])] = {
      val now = nowUtc
      val accountUpdatesFromDeletions: Source[AccountUpdate, NotUsed] =
        dbService
          .getDeleteActions(before = now)
          .map(deletionEventToAccountUpdate)

      val result = getAccountUpdates(changedAfter, changedBefore)
        .merge(getErrorUpdates)
        .merge(accountUpdatesFromDeletions)
        .mapAsync(4)(writer.writePSVString)
        .viaMat(creditBureauService.sendUpdate)(Keep.right)
        .mapAsync(4)(au =>
          for {
            _ <- dbService.performUpdate(au)
            _ <- performActionsDelete(now, au)
          } yield au.operation
        )
        .toMat(Sink.seq)(Keep.both)
        .withAttributes(ActorAttributes.supervisionStrategy(decider))
        .run()

      tupleFutureToFutureTuple(result) andThen {
        case Success((sftpResult, updateList)) if sftpResult.wasSuccessful =>
          val total = updateList.size
          val deleted = updateList.count(_ == Operation.DELETED)
          val updated = updateList.count(_ == Operation.UPDATED)
          val inserted = updateList.count(_ == Operation.INSERTED)
          log.info(s"SUCCESS! Uploaded $total accounts to Equifax.")
          log.info(s"There were $deleted deletions, " +
            s"$updated updates and " +
            s"$inserted insertions to the database")
          monitor.gauge("upload.process.batch.successful.total", total)
          monitor.gauge("upload.process.batch.successful.deleted", deleted)
          monitor.gauge("upload.process.batch.successful.updated", updated)
          monitor.gauge("upload.process.batch.successful.inserted", inserted)
        case Success((sftpResult, _)) if !sftpResult.wasSuccessful =>
          val sw = new StringWriter
          sftpResult.getError.printStackTrace(new PrintWriter(sw))
          log.error("Failed to send data: " + sw.toString)
          monitor.gauge("upload.process.batch.sftp.failed", 1)
        case Failure(e: Throwable) =>
          val sw = new StringWriter
          e.printStackTrace(new PrintWriter(sw))
          log.error(sw.toString)
          monitor.gauge("upload.process.batch.failed", 1)
      }
    }