docs: def get_alias(self, alias):
          """
          RETURN REFERENCE TO ALIAS (MANY INDEXES)
          USER MUST BE SURE NOT TO SEND UPDATES
          """
          aliases = self.get_aliases()
          if alias in aliases.alias:
              settings = self.settings.copy()
              settings.alias = alias
              settings.index = alias
              return Index(read_only=True, kwargs=settings, cluster=self)
          Log.error("Can not find any index with alias {{alias_name}}",  alias_name= alias)