docs: def mmatch(expr, delimiter, greedy, opts=None):
      '''
      Return the minions found by looking via pillar
      '''
      if not opts:
          opts = __opts__
  
      ckminions = salt.utils.minions.CkMinions(opts)
      return ckminions._check_compound_minions(expr, delimiter, greedy,
                                               pillar_exact=True)