source = response.source(),
      boundary =
        response.contentType()?.parameter("boundary")
          ?: throw ProtocolException("expected the Content-Type to have a boundary parameter"),
    )

    @Throws(IOException::class)
    fun nextPart(): Part? {
      check(!closed) { "closed" }

      if (noMoreParts) return null

      // Read a boundary, skipping the remainder of the preceding part as necessary.

  }

  @Test fun testParse() {
    val mediaType = parse("text/plain;boundary=foo;charset=utf-8")
    assertEquals("text", mediaType.type)
    assertEquals("plain", mediaType.subtype)
    assertEquals("UTF-8", mediaType.charsetName())
    assertEquals("text/plain;boundary=foo;charset=utf-8", mediaType.toString())
    assertEquals(mediaType, parse("text/plain;boundary=foo;charset=utf-8"))
    assertEquals(
      mediaType.hashCode(),

   *
   * <p>Any parts of the range not already present in this map are mapped to the specified value,
   * unless the value is {@code null}.
   *
   * <p>Any existing entry spanning either range boundary may be split at the boundary, even if the
   * merge does not affect its value. For example, if {@code rangeMap} had one entry {@code [1, 5]
   * => 3} then {@code rangeMap.merge(Range.closed(0,2), 3, Math::max)} could yield a map with the