/**
  * Gets the entire stream wrapper registry
  *
  * Returns the entire stream wrapper registry, or initializes a new
  * registry if one does not exist.
  *
  * @return object
  *   A singleton object for the stream wrapper registry.
  *
  * @access  public
  * @static
  * @see     WP_Stream_Wrapper_Registry::get_stream_wrappers()
  * @since   1.0.0
  */
 public static function get_registry()
 {
     if (!isset(self::$registry)) {
         self::$registry = new WP_Stream_Wrapper_Registry();
     }
     return self::$registry;
 }