/**
  * Main instance of View Admin As.
  *
  * Returns the main instance of VAA_View_Admin_As to prevent the need to use globals.
  *
  * @since   1.4.1
  * @since   1.6     $caller parameter
  * @param   object  $caller
  * @return  VAA_View_Admin_As
  */
 function View_Admin_As($caller)
 {
     return VAA_View_Admin_As::get_instance($caller);
 }