code: function getShortlinker() {
  	if ( globalScope.yoast.shortlinker === null ) {
  		globalScope.yoast.shortlinker = new Shortlinker();
  	}
  	return globalScope.yoast.shortlinker;
  }
docs: Retrieves the Shortlinker instance.
  
  @returns {Shortlinker} The Shortlinker.