Read buffer instead of string with xreadgroup

[Strauteka]

With xadd I can add string | Buffer | number; But acquire value with xreadgroup returns string(corrupted).
Is there is an equivalent method to receive buffer in stream group read?
Cant find one.

redis.xreadgroup(
            'GROUP',
            groupName,
            consumerName,
            'COUNT',
            count,
            'STREAMS',
            channel,
            id || '>'
        );

closest method found

   xreadBuffer(...args: [
        streamsToken: "STREAMS",
        ...args: RedisValue[],
        callback: Callback<[
            key: Buffer,
            items: [id: Buffer, fields: Buffer[]][]
        ][] | null>
    ]): Result<[
        key: Buffer,
        items: [id: Buffer, fields: Buffer[]][]
    ][] | null, Context>;