override fun toString(): String =
    generateSequence<LinkedTags<*>>(seed = this) { it.next as? LinkedTags<*> }
      .toList()
      .reversed()
      .joinToString(prefix = "{", postfix = "}") { "${it.key}=${it.value}" }
}

internal fun <T : Any> AtomicReference<Tags>.computeIfAbsent(
  type: KClass<T>,
  compute: () -> T,
): T {
  var computed: T? = null

  while (true) {

### Documentation

- Added an example of set-based requirements for the  `-l` / `--selector` command line option to `kubectl`. ([#129106](https://github.com/kubernetes/kubernetes/pull/129106), [@rotsix](https://github.com/rotsix))