docs: def store_minions(opts, jid, minions, mminion=None, syndic_id=None):
      '''
      Store additional minions matched on lower-level masters using the configured
      master_job_cache
      '''
      if mminion is None:
          mminion = salt.minion.MasterMinion(opts, states=False, rend=False)
      job_cache = opts['master_job_cache']
      minions_fstr = '{0}.save_minions'.format(job_cache)
  
      try:
          mminion.returners[minions_fstr](jid, minions, syndic_id=syndic_id)
      except KeyError:
          raise KeyError(
              'Returner \'{0}\' does not support function save_minions'.format(
                  job_cache
              )
          )