@JvmField
    val EMPTY: RequestBody = ByteString.EMPTY.toRequestBody()

    /**
     * Returns a new request body that transmits this string. If [contentType] is non-null and lacks
     * a charset, this will use UTF-8.
     */
    @JvmStatic
    @JvmName("create")
    fun String.toRequestBody(contentType: MediaType? = null): RequestBody {

      )
    call.execute().use { response ->
      val requestBody = (call.request().body as AsyncRequestBody?)!!.takeSink()
      requestBody.writeUtf8("request A\n")
      requestBody.flush()
      val responseBody = response.body.source()
      assertThat(responseBody.readUtf8Line())
        .isEqualTo("response B")
      requestBody.writeUtf8("request C\n")
      requestBody.flush()
      assertThat(responseBody.readUtf8Line())

        final Map<String, Object> requestBody = new HashMap<>();
        final String keyProp = NAME_PREFIX + id;
        final String paths = "file:///" + NAME_PREFIX + id;
        requestBody.put(KEY_PROPERTY, keyProp);
        requestBody.put("paths", paths);
        requestBody.put("num_of_thread", 5);
        requestBody.put("interval_time", 1000);
        requestBody.put("boost", id);

    }

    @Override
    protected Map<String, Object> createTestParam(int id) {
        final Map<String, Object> requestBody = new HashMap<>();
        final String keyProp = NAME_PREFIX + id;
        requestBody.put(KEY_PROPERTY, keyProp);
        requestBody.put("permissions", "Radmin-api");
        return requestBody;
    }

    @Override
    protected Map<String, Object> getUpdateMap() {

        requestBody.put("depth", 1);
        requestBody.put("num_of_thread", 1);
        requestBody.put("interval_time", 1000);
        requestBody.put("boost", 100);
        requestBody.put("available", true);
        requestBody.put("sort_order", 0);
        createWebConfig(requestBody);
    }

    private static void createJob() {
        final Map<String, Object> requestBody = new HashMap<>();

  @Test
  fun multipartBodyPart() {
    val requestBody: RequestBody = "".toRequestBody(null)
    var part: MultipartBody.Part = MultipartBody.Part.create(null, requestBody)
    part = MultipartBody.Part.create(headersOf(), requestBody)
    part = MultipartBody.Part.create(requestBody)
    part = MultipartBody.Part.createFormData("", "")
    part = MultipartBody.Part.createFormData("", "", requestBody)

	public final fun create (Lokhttp3/MediaType;[BI)Lokhttp3/RequestBody;
	public final fun create (Lokhttp3/MediaType;[BII)Lokhttp3/RequestBody;
	public final fun create (Lokio/ByteString;Lokhttp3/MediaType;)Lokhttp3/RequestBody;
	public final fun create (Lokio/Path;Lokio/FileSystem;Lokhttp3/MediaType;)Lokhttp3/RequestBody;
	public final fun create ([B)Lokhttp3/RequestBody;
	public final fun create ([BLokhttp3/MediaType;)Lokhttp3/RequestBody;

        final Map<String, Object> requestBody = new HashMap<>();
        requestBody.put("name", "test_webconfig");
        requestBody.put("urls", "http://www.example.com");
        requestBody.put("user_agent", "Mozilla/5.0");
        requestBody.put("num_of_thread", 5);
        requestBody.put("interval_time", 1000);
        requestBody.put("boost", 100.0);
        requestBody.put("available", true);

        for (Map<String, Object> setting : settings) {
            final Map<String, Object> requestBody = new HashMap<>(updateMap);
            final String idKey = getIdKey();

            requestBody.put("version", 1);
            requestBody.put("crud_mode", 2);

            if (setting.containsKey(idKey)) {
                requestBody.put(idKey, setting.get(idKey));
            }

///

## Anwendungsfälle

Einige Anwendungsfälle sind:

* Konvertieren von Nicht-JSON-Requestbodys nach JSON (z. B. <a href="https://msgpack.org/index.html" class="external-link" target="_blank">`msgpack`</a>).
* Dekomprimierung gzip-komprimierter Requestbodys.
* Automatisches Loggen aller Requestbodys.

## Handhaben von benutzerdefinierten Requestbody-Kodierungen