const responseStream = new TransformStream();
const writer = responseStream.writable.getWriter();
const encoder = new TextEncoder();

void writer.write(encoder.encode(JSON.stringify(chunk1)));

// Send one chunk every second for 5 seconds
let count = 0;
const interval = setInterval(() => {
  void writer.write(encoder.encode(JSON.stringify(chunk2)));
  if (count++ === 5) {
    void writer.close();
    clearInterval(interval);
  }
}, 1000);

return responseStream.readable;