@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 {

        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<>();

        final Map<String, Object> requestBody = new HashMap<>();
        final String keyProp = NAME_PREFIX + id;
        final String urls = "http://" + NAME_PREFIX + id;
        requestBody.put(KEY_PROPERTY, keyProp);
        requestBody.put("urls", urls);
        requestBody.put("user_agent", "Mozilla/5.0");
        requestBody.put("num_of_thread", 5);
        requestBody.put("interval_time", 1000);

    }

    @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() {

        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);

  @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<>();
        final String keyProp = NAME_PREFIX + id;
        requestBody.put(KEY_PROPERTY, keyProp);
        requestBody.put("segmentation", "segment");
        requestBody.put("reading", "reading");
        requestBody.put("pos", "pos");
        return requestBody;
    }

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

        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));
            }

        }
      }

    val file = File("docs/images/logo-square.png")
    val requestBody: RequestBody = file.asRequestBody(MEDIA_TYPE_PNG)

    val request =
      Request
        .Builder()
        .header("Authorization", "Client-ID $IMGUR_CLIENT_ID")
        .url("https://api.imgur.com/3/image")
        .post(ProgressRequestBody(requestBody, progressListener))
        .build()