.add("content-type", "text/plain")
          .add("content-length", "3")
          .build(),
      ).assertBody("abc")
      .assertSentRequestAtMillis(sentAt, receivedAt)
      .assertReceivedResponseAtMillis(sentAt, receivedAt)
    val recordedRequest = server.takeRequest()
    assertThat(recordedRequest.method).isEqualTo("GET")
    assertThat(recordedRequest.headers["User-Agent"]).isEqualTo("SyncApiTest")