.build()
    assertThat(body.boundary).isEqualTo("123")
    assertThat(body.type).isEqualTo(MultipartBody.MIXED)
    assertThat(body.contentType().toString())
      .isEqualTo("multipart/mixed; boundary=123")
    assertThat(body.parts.size).isEqualTo(1)
    assertThat(body.contentLength()).isEqualTo(33L)
    val buffer = Buffer()
    body.writeTo(buffer)
    assertThat(body.contentLength()).isEqualTo(buffer.size)

Download a file, print its headers, and print its response body as a string.

The `string()` method on response body is convenient and efficient for small documents. But if the response body is large (greater than 1 MiB), avoid `string()` because it will load the entire document into memory. In that case, prefer to process the body as a stream.

=== ":material-language-kotlin: Kotlin"
    ```kotlin

      val requestBody = (call.request().body as AsyncRequestBody?)!!.takeSink()
      requestBody.writeUtf8("request body\n")
      requestBody.flush()
      val responseBody = response.body.source()
      assertThat(responseBody.readUtf8Line())
        .isEqualTo("response body")
      requestBody.close()
      assertThat(responseBody.readUtf8Line()).isNull()
    }
    body.awaitSuccess()
  }

  /**

                                <la:message key="labels.system_info_env_title"/>
                            </h3>
                        </div>
                        <%-- Card Body --%>
                        <div class="card-body">
								<textarea id="envData" class="systemInfoData form-control"
                                          readonly>
<c:forEach var="item" items="${envItems}">${f:h(item.label)}=${f:h(item.value)}

    assertThat(request.body).isNull()
    assertThat(request.tags).isEmpty()
  }

  @Test
  fun constructorNoMethod() {
    val url = "https://example.com/".toHttpUrl()
    val body = "hello".toRequestBody()
    val headers = headersOf("User-Agent", "RequestTest")
    val request =
      Request(
        url = url,
        headers = headers,
        body = body,
      )

  fun legalToExecuteTwiceCloning() {
    server.enqueue(MockResponse(body = "abc"))
    server.enqueue(MockResponse(body = "def"))

    val request = Request(server.url("/"))

    val call = client.newCall(request)
    val response1 = call.execute()

    val cloned = call.clone()
    val response2 = cloned.execute()

    assertThat("abc").isEqualTo(response1.body.string())
    assertThat("def").isEqualTo(response2.body.string())
  }

        localhostIpv4,
        localhostIpv6,
      )
    serverIpv4.enqueue(
      MockResponse(body = "unexpected call to IPv4"),
    )
    serverIpv6.enqueue(
      MockResponse(body = "hello from IPv6"),
    )

    val call = client.newCall(Request(url))
    val response = call.execute()
    assertThat(response.body.string()).isEqualTo("hello from IPv6")

    // In the process we made one successful connection attempt.

     * @param body the request body containing synonym item information
     * @return JSON response with result status
     */
    // POST /api/admin/dict/synonym/setting/{dictId}
    @Execute
    public JsonResponse<ApiResult> post$setting(final String dictId, final CreateBody body) {
        body.dictId = dictId;
        validateApi(body, messages -> {});
        body.crudMode = CrudMode.CREATE;

    assertThat(body.name(1)).isEqualTo("space, the")
    assertThat(body.name(2)).isEqualTo("%25")
    assertThat(body.encodedValue(0)).isEqualTo("c%2B%3D%26+d")
    assertThat(body.encodedValue(1)).isEqualTo("final+frontier")
    assertThat(body.encodedValue(2)).isEqualTo("%2525")
    assertThat(body.value(0)).isEqualTo("c+=& d")
    assertThat(body.value(1)).isEqualTo("final frontier")
    assertThat(body.value(2)).isEqualTo("%25")

  fun readTimeoutOnSlowConnection(protocol: Protocol) {
    setUp(protocol)
    val body = repeat('y', 2048)
    server.enqueue(
      MockResponse
        .Builder()
        .body(body)
        .throttleBody(1024, 1, TimeUnit.SECONDS)
        .build(),
    ) // Slow connection 1KiB/second.
    server.enqueue(
      MockResponse(body = body),
    )
    client =
      client
        .newBuilder()