code: def _complete_original_tasks(
              self,
              setName):
          
          self.log.info('starting the ``_complete_original_tasks`` method')
  
          if self.editorialRootPath:
              taskpaperDocPath = self.syncFolder + "/e-" + \
                  self.workspaceName + "-" + setName + "-tasks.taskpaper"
          else:
              taskpaperDocPath = self.syncFolder + "/" + \
                  self.workspaceName + "-" + setName + "-tasks.taskpaper"
          exists = os.path.exists(taskpaperDocPath)
          if not exists:
              return
  
          # OPEN TASKPAPER INDEX FILE
          doc = document(taskpaperDocPath)
          doneTasks = doc.tagged_tasks("@done")
  
          for t in doneTasks:
              theseNotes = t.notes
              parent = t.parent
              while not len(theseNotes) and parent and parent.parent:
                  theseNotes = parent.notes
                  parent = parent.parent
  
              if self.editorialRootPath:
                  theseNotes[0].title = theseNotes[0].title.replace(
                      "editorial://open", self.editorialRootPath).replace("?root=dropbox", "")
                  theseNotes[0].title = urllib.unquote(
                      theseNotes[0].title).replace("%40", "@")
  
              originalFile = theseNotes[0].title.split(" > ")[0].strip()
              if len(theseNotes[0].title.split(" > ")) > 1:
                  projectName = theseNotes[0].title.split(" > ")[1].strip()
              else:
                  projectName = False
  
              odoc = document(originalFile)
              odoc.tidy()
              odoc.save()
              odoc = document(originalFile)
              if projectName:
                  thisObject = odoc.get_project(projectName)
              else:
                  thisObject = odoc
  
              oTask = thisObject.get_task(t.title)
              if oTask:
                  oTask.done("all")
                  odoc.save()
  
          self.log.info('completed the ``_complete_original_tasks`` method')
          return None
docs: *mark original tasks as completed if they are marked as complete in the index taskpaper document*
  
          **Key Arguments:**
              - ``setName`` -- the name of the sync tag set