docs: def set_user_tag(self,usertag,pass_to_command_line=True):
      """
      Set the user tag that is passed to the analysis code.
      @param user_tag: the user tag to identify the job
      @bool pass_to_command_line: add user-tag as a variable option.
      """
      self.__user_tag = usertag
      if pass_to_command_line:
        self.add_var_opt('user-tag', usertag)