docs: def _pre_tune(self):
          '''
          Set the minion running flag and issue the appropriate warnings if
          the minion cannot be started or is already running
          '''
          if self._running is None:
              self._running = True
          elif self._running is False:
              log.error(
                  'This %s was scheduled to stop. Not running %s.tune_in()',
                  self.__class__.__name__, self.__class__.__name__
              )
              return
          elif self._running is True:
              log.error(
                  'This %s is already running. Not running %s.tune_in()',
                  self.__class__.__name__, self.__class__.__name__
              )
              return
  
          try:
              log.info(
                  '%s is starting as user \'%s\'',
                  self.__class__.__name__, salt.utils.user.get_user()
              )
          except Exception as err:
              # Only windows is allowed to fail here. See #3189. Log as debug in
              # that case. Else, error.
              log.log(
                  salt.utils.platform.is_windows() and logging.DEBUG or logging.ERROR,
                  'Failed to get the user who is starting %s',
                  self.__class__.__name__,
                  exc_info=err
              )