code: def delete(self, uid):
          '''
          Delete the history of certain ID.
          '''
          if self.check_post_role()['DELETE']:
              pass
          else:
              return False
  
          histinfo = MWikiHist.get_by_uid(uid)
          if histinfo:
              pass
          else:
              return False
  
          postinfo = MWiki.get_by_uid(histinfo.wiki_id)
          MWikiHist.delete(uid)
          self.redirect('/wiki_man/view/{0}'.format(postinfo.uid)f delete(self, uid):
          '''
          Delete the history of certain ID.
          '''
          if self.check_post_role()['DELETE']:
              pass
          else:
              return False
  
          histinfo = MWikiHist.get_by_uid(uid)
          if histinfo:
              pass
          else:
              return False
  
          postinfo = MWiki.get_by_uid(histinfo.wiki_id)
          MWikiHist.delete(uid)
          self.redirect('/wiki_man/view/{0}'.format(postinfo.uid))
docs: Delete the history of certain ID.