How to use the iredis.config.config.transaction function in iredis

def pre_hook(self, command, command_name, args, completer):
        """
        Before execute command, patch completers first.
        Eg: When user run `GET foo`, key completer need to
          touch foo.

        Only works when compile-grammar thread is done.
        """
        # TRANSATION state chage
        if command_name.upper() in ["EXEC", "DISCARD"]:
            logger.debug(f"[After hook] Command is {command_name}, unset transaction.")
            config.transaction = False
        # score display for sorted set
        if command_name.upper() in ["ZSCAN", "ZPOPMAX", "ZPOPMIN"]:
            config.withscores = True

        # patch completers
        if not completer:
            logger.warning("[Pre patch completer] Complter not ready, not patched...")
            return
        redis_grammar = completer.compiled_grammar
        m = redis_grammar.match(command)
        if not m:
            # invalide command!
            return
        variables = m.variables()
        # zset withscores
        withscores = variables.get("withscores")

                rprompt=lambda: "" if config.transaction else None,
            )

def render_response(self, response, completer, command_name, **options):
        "Parses a response from the Redis server"
        logger.info(f"[Redis-Server] Response: {response}")
        # if in transaction, use queue render first
        if config.transaction:
            callback = renders.render_transaction_queue
            rendered = callback(response, completer)
        else:
            rendered = self.render_command_result(command_name, response, completer)
        return rendered

def after_hook(self, command, command_name, args, completer):
        # === After hook ===
        # SELECT db on AUTH
        if command_name.upper() == "AUTH" and self.db:
            select_result = self.execute_command_and_read_response(
                completer, "SELECT", self.db
            )
            if nativestr(select_result) != "OK":
                raise ConnectionError("Invalid Database")
        elif command_name.upper() == "SELECT":
            logger.debug("[After hook] Command is SELECT, change self.db.")
            self.db = int(args[0])
        if command_name.upper() == "MULTI":
            logger.debug("[After hook] Command is MULTI, start transaction.")
            config.transaction = True