* position}th position or {@code defaultValue} otherwise.
   *
   * @param position position of the element to return
   * @param defaultValue the default value to return if the iterator is empty or if {@code position}
   *     is greater than the number of elements remaining in {@code iterator}
   * @return the element at the specified position in {@code iterator} or {@code defaultValue} if

  }

  @Override
  public boolean isPresent() {
    return true;
  }

  @Override
  public T get() {
    return reference;
  }

  @Override
  public T or(T defaultValue) {
    checkNotNull(defaultValue, "use Optional.orNull() instead of Optional.or(null)");
    return reference;
  }

  @Override
  public Optional<T> or(Optional<? extends T> secondChoice) {
    checkNotNull(secondChoice);

    return false;
  }

  @Override
  public T get() {
    throw new IllegalStateException("Optional.get() cannot be called on an absent value");
  }

  @Override
  public T or(T defaultValue) {
    return checkNotNull(defaultValue, "use Optional.orNull() instead of Optional.or(null)");
  }

  @SuppressWarnings("unchecked") // safe covariant cast
  @Override
  public Optional<T> or(Optional<? extends T> secondChoice) {

            return value.toString();
        }
        return null;
    }

    public String getAsString(final String key, final String defaultValue) {
        final String value = getAsString(key);
        if (value != null) {
            return value;
        }
        return defaultValue;
    }

    public DataStoreParams newInstance() {
        return new DataStoreParams(params);
    }

    return false;
  }

  @Override
  public T get() {
    throw new IllegalStateException("Optional.get() cannot be called on an absent value");
  }

  @Override
  public T or(T defaultValue) {
    return checkNotNull(defaultValue, "use Optional.orNull() instead of Optional.or(null)");
  }

  @SuppressWarnings("unchecked") // safe covariant cast
  @Override
  public Optional<T> or(Optional<? extends T> secondChoice) {

     * ListProperty[T] -> original type becomes List[T]
     * ConfigurableFileCollection -> original type becomes FileCollection
     */
    Class<?> originalType() default DefaultValue.class;

    /**
     * Whether the setter accessor for property was fluent
     */
    boolean fluentSetter() default false;

    /**

                String defaultValue = ce.getAttribute("default-value", null);
                if (value != null || defaultValue != null) {
                    XmlNodeImpl e = new XmlNodeImpl(
                            ce.getName(),
                            value,
                            defaultValue != null ? Collections.singletonMap("default-value", defaultValue) : null,
                            null,

	// disable with -1 sentinel
	if value == disableTTL {
		klog.V(2).Infof("image policy webhook %s disabled", name)
		return time.Duration(0), nil
	}

	// use default with 0 sentinel
	if value == useDefault {
		klog.V(2).Infof("image policy webhook %s using default value", name)
		return defaultValue, nil
	}

        }
    }

    protected <T> T getInitParameter(final String key, final T defaultValue, final Class<T> clazz) {
        if (initParamMap != null) {
            try {
                final Object paramValue = initParamMap.get(key);
                if (paramValue == null) {
                    return defaultValue;
                }

                return convertObj(paramValue, clazz);

			*uint, *uint8, *uint16, *uint32, *uint64, *[]byte:
			reflect.ValueOf(out).Elem().Set(reflect.ValueOf(defaultValue))
		case *big.Int:
			if defaultValue, ok := defaultValue.(*big.Int); ok {
				out.(*big.Int).Set(defaultValue)
			} else {
				panic("out points to big.Int, but defaultValue does not")
			}
		default:
			panic("invalid integer type")
		}
		return true
	}