code: def get_prototype(self, alias):
          
          output = sort([
              a.index
              for a in self.get_aliases()
              if re.match(re.escape(alias) + "\\d{8}_\\d{6}", a.index) and not a.alias
          ])
          return output
docs: RETURN ALL INDEXES THAT ARE INTENDED TO BE GIVEN alias, BUT HAVE NO
          ALIAS YET BECAUSE INCOMPLETE