def get_one(self, id):
        """
        List RuleType objects by id.

        Handle:
            GET /ruletypes/1
        """
        ruletype_db = RuleTypesController.__get_by_id(id)
        ruletype_api = RuleTypeAPI.from_model(ruletype_db)
        return ruletype_api

        List RuleType objects by id.

        Handle:
            GET /ruletypes/1
        
st2api/st2api/controllers/v1/ruletypes.py