@app.get("/")
    def read_root() -> Rectangle:
        return Rectangle(width=3, length=4)

    @app.get("/responses", responses={200: {"model": Rectangle}})
    def read_responses() -> Rectangle:
        return Rectangle(width=3, length=4)

    client = TestClient(app)
    return client


@pytest.mark.parametrize("client", [True, False], indirect=True)

  }

  private fun processResponse(
    response: Response,
    hostname: String,
    results: MutableList<InetAddress>,
    failures: MutableList<Exception>,
  ) {
    try {
      val addresses = readResponse(hostname, response)
      synchronized(results) {
        results.addAll(addresses)
      }
    } catch (e: Exception) {
      synchronized(failures) {
        failures.add(e)
      }
    }
  }