interface MyMethodExamples {
  void reset();

  void configure(optional boolean force = false, optional DOMString? label = null);

  void log(DOMString message, any... extras);

  void update(DOMString key, DOMString value);
  void update(sequence<DOMString> keys);

  Promise<DOMString> fetchRemoteValue(optional DOMString? endpoint);

  static boolean isValid(DOMString candidate);

  [Deprecated="Use configure() instead."]
  void init();
};

[Exposed=Window]
interface Dimensions {
  attribute unsigned long width;
  attribute unsigned long height;
};

[Exposed=Window]
interface Button {

  // An operation that takes no arguments and returns a boolean.
  boolean isMouseOver();

  // Overloaded operations.
  undefined setDimensions(Dimensions size);
  undefined setDimensions(unsigned long width, unsigned long height);
};