/** The number of parts in this multipart body. */
  @get:JvmName("size")
  val size: Int
    get() = parts.size

  fun part(index: Int): Part = parts[index]

  override fun isOneShot(): Boolean {
    return parts.any { it.body.isOneShot() }
  }

  /** A combination of [type] and [boundaryByteString]. */
  override fun contentType(): MediaType = contentType

  @JvmName("-deprecated_type")
  @Deprecated(