docs: def has_target(alias, target):
      '''
      Return true if the alias/target is set
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' aliases.has_target alias target
      '''
      if target == '':
          raise SaltInvocationError('target can not be an empty string')
      aliases = list_aliases()
      if alias not in aliases:
          return False
      if isinstance(target, list):
          target = ', '.join(target)
      return target == aliases[alias]