*
     * 1024 by default.
     */
    fun minWebSocketMessageToCompress(bytes: Long) =
      apply {
        require(bytes >= 0) {
          "minWebSocketMessageToCompress must be positive: $bytes"
        }

        this.minWebSocketMessageToCompress = bytes
      }

    fun build(): OkHttpClient = OkHttpClient(this)
  }

  companion object {

 * `java.net.URL` it's possible to create an awkward URL like `http:/` with scheme and path but no
 * hostname. Building APIs that consume such malformed values is difficult!
 *
 * This class has a modern API. It avoids punitive checked exceptions: [toHttpUrl] throws
 * [IllegalArgumentException] on invalid input or [toHttpUrlOrNull] returns null if the input is an
 * invalid URL. You can even be explicit about whether each component has been encoded already.