
            tx.close();

            dbg.debug('reading `bucket.set` response...');
            buf = null;
            await rx.read().then(function handleChunk({done, value}) {
                if (!buf) {
                    buf = value;
                } else if (value) {
                    const b = new Uint8Array(buf.length + value.length);
                    b.set(buf);
                    b.set(value, buf.length);
                    buf = b;
                }
                if (done) {
         