/// declare module goog._string { interface TypedString { /** * Interface marker of the TypedString interface. * * This property can be used to determine at runtime whether or not an object * implements this interface. All implementations of this interface set this * property to {@code true}. * @type {boolean} */ implementsGoogStringTypedString: boolean; /** * Retrieves this wrapped string's value. * @return {!string} The wrapped string's value. */ getTypedStringValue(): string; } }