How to use the aiochclient.client.QueryTypes.FETCH function in aiochclient

def query_type(cls, query: str) -> QueryTypes:
        check = query.lstrip()[:8].upper()
        if any(
            [
                check.startswith("SELECT"),
                check.startswith("SHOW"),
                check.startswith("DESCRIBE"),
                check.startswith("EXISTS"),
            ]
        ):
            return QueryTypes.FETCH
        if check.startswith("INSERT"):
            return QueryTypes.INSERT
        return QueryTypes.OTHER

async def _execute(self, query: str, *args) -> AsyncGenerator[Record, None]:
        query_type = self.query_type(query)

        if query_type == QueryTypes.FETCH:
            query += " FORMAT TSVWithNamesAndTypes"
        if args:
            if query_type != QueryTypes.INSERT:
                raise ChClientError(
                    "It is possible to pass arguments only for INSERT queries"
                )
            params = {**self.params, "query": query}
            data = rows2ch(*args)
        else:
            params = self.params
            data = query.encode()

        async with self._session.post(
            self.url, params=params, data=data
        ) as resp:  # type: client.ClientResponse
            if resp.status != 200: