Function fetch

src/services/api/openAICompatWsV2Native.test.ts:448–453

(req, server)

  const server = Bun.serve({
    port: 0,
    fetch(req, server) {
      if (server.upgrade(req)) {
        return undefined
      }
      return new Response('not found', { status: 404 })
    },
    websocket: {
      message(ws, raw) {
        const message = JSON.parse(String(raw)) as {