}
  }

  private transient @Nullable ImmutableSortedSet<K> keySet;

  @Override
  public ImmutableSortedSet<K> keySet() {
    ImmutableSortedSet<K> ks = keySet;
    return (ks == null) ? (keySet = createKeySet()) : ks;
  }

  @Override
  ImmutableSortedSet<K> createKeySet() {
    // the keySet() of the delegate is only a Set and TreeMap.navigatableKeySet

    public void remove() {
      iterator.remove();
    }
  }

  Set<K> keySet;

  @Override
  public Set<K> keySet() {
    // does not impact recency ordering
    Set<K> ks = keySet;
    return (ks != null) ? ks : (keySet = new KeySet(this));
  }

  Collection<V> values;

  @Override
  public Collection<V> values() {
    // does not impact recency ordering
    Collection<V> vs = values;

		fmt.Println("== DEBUG Mode enabled ==")
		fmt.Println("Currently set environment settings:")
		ks := []string{
			config.EnvAccessKey,
			config.EnvSecretKey,
			config.EnvRootUser,
			config.EnvRootPassword,
		}
		for _, v := range os.Environ() {
			// Do not print sensitive creds in debug.
			if slices.Contains(ks, strings.Split(v, "=")[0]) {
				continue
			}
			fmt.Println(v)
		}

    return new MapEntry(index);
  }

  class MapEntry extends AbstractEntry<K> {
    @ParametricNullness final K key;

    int lastKnownIndex;

    @SuppressWarnings("unchecked") // keys only contains Ks
    MapEntry(int index) {
      this.key = (K) keys[index];
      this.lastKnownIndex = index;
    }

    @Override
    @ParametricNullness
    public K getElement() {
      return key;
    }

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                          const tensorflow::AttrValue& default_value,
                          const char* attr_name, TF_Status* status) {
  switch (default_value.value_case()) {
    case tensorflow::AttrValue::kS: {
      const string& v = default_value.s();
      TFE_OpSetAttrString(op, attr_name, v.data(), v.size());
      break;
    }
    case tensorflow::AttrValue::kI: