override fun contentType(): MediaType {
        return "application/xml".toMediaType()
      }

      override fun writeTo(sink: BufferedSink) {
        sink.writeUtf8("<element/>")
        sink.flush()
      }
    }

    server.enqueue(MockResponse(code = 201))
    server.enqueue(MockResponse(code = 204))
    server.enqueue(MockResponse(code = 204))