contentType: MediaType?,
  offset: Int,
  byteCount: Int,
): RequestBody {
  checkOffsetAndCount(size.toLong(), offset.toLong(), byteCount.toLong())
  return object : RequestBody() {
    override fun contentType() = contentType

    override fun contentLength() = byteCount.toLong()

    override fun writeTo(sink: BufferedSink) {
      sink.write(this@commonToRequestBody, offset, byteCount)
    }
  }
}

     * @return 変換された{@link Long}
     */
    public static Long toLong(final Object o) {
        return toLong(o, null);
    }

    /**
     * {@link Long}に変換します。
     *
     * @param o
     *            変換元のオブジェクト
     * @param pattern
     *            パターン文字列
     * @return 変換された{@link Long}
     */
    public static Long toLong(final Object o, final String pattern) {
        if (o == null) {

            ConstantValueKind.Long -> (value as Number).toLong()
            ConstantValueKind.Short -> (value as Number).toShort()
            ConstantValueKind.UnsignedByte -> (value as Number).toLong().toUByte()
            ConstantValueKind.UnsignedShort -> (value as Number).toLong().toUShort()
            ConstantValueKind.UnsignedInt -> (value as Number).toLong().toUInt()

      @Suppress("UNUSED_VARIABLE")
      val ttl = buf.readInt().toLong() and 0xffffffffL // ttl
      val length = buf.readShort().toInt() and 0xffff

      if (type == TYPE_A || type == TYPE_AAAA) {
        val bytes = ByteArray(length)
        buf.read(bytes)
        result.add(InetAddress.getByAddress(bytes))
      } else {
        buf.skip(length.toLong())
      }
    }

    return result
  }

  return Buffer()
    .write(this)
    .asResponseBody(contentType, size.toLong())
}

internal fun ByteString.commonToResponseBody(contentType: MediaType?): ResponseBody {
  return Buffer()
    .write(this)
    .asResponseBody(contentType, size.toLong())
}

internal fun BufferedSource.commonAsResponseBody(
  contentType: MediaType?,
  contentLength: Long,
): ResponseBody =

 */
class HeadersReader(val source: BufferedSource) {
  private var headerLimit = HEADER_LIMIT.toLong()

  /** Read a single line counted against the header size limit. */
  fun readLine(): String {
    val line = source.readUtf8LineStrict(headerLimit)
    headerLimit -= line.length.toLong()
    return line
  }

  /** Reads headers or trailers. */
  fun readHeaders(): Headers {

    if (connectTimeout != DEFAULT_TIMEOUT) {
      builder.connectTimeout(connectTimeout.toLong(), SECONDS)
    }
    if (readTimeout != DEFAULT_TIMEOUT) {
      builder.readTimeout(readTimeout.toLong(), SECONDS)
    }
    if (callTimeout != DEFAULT_TIMEOUT) {
      builder.callTimeout(callTimeout.toLong(), SECONDS)
    }
    if (allowInsecure) {
      val trustManager = createInsecureTrustManager()

  require(address.size == 4)
  return Buffer()
    .writeDecimalLong((address[0] and 0xff).toLong())
    .writeByte('.'.code)
    .writeDecimalLong((address[1] and 0xff).toLong())
    .writeByte('.'.code)
    .writeDecimalLong((address[2] and 0xff).toLong())
    .writeByte('.'.code)
    .writeDecimalLong((address[3] and 0xff).toLong())
    .readUtf8()
}

/**

    assertThat(source.readByteString(prefix.size.toLong())).isEqualTo(prefix)
    assertThat(source.readLong()).isEqualTo(upstreamSize)
    assertThat(source.readLong()).isEqualTo(metadataSize.toLong())
    if (upstream != null) {
      assertThat(source.readUtf8(upstreamSize)).isEqualTo(upstream)
    }
    if (metadata != null) {
      assertThat(source.readByteString(metadataSize.toLong())).isEqualTo(metadata)
    }
    source.close()

        try {
            final RESULT result = entityType.newInstance();
            result.setEndTime(DfTypeUtil.toLong(source.get("endTime")));
            result.setJobName(DfTypeUtil.toString(source.get("jobName")));
            result.setJobStatus(DfTypeUtil.toString(source.get("jobStatus")));
            result.setLastUpdated(DfTypeUtil.toLong(source.get("lastUpdated")));
            result.setScriptData(DfTypeUtil.toString(source.get("scriptData")));