/**
  * Used to set the $_model_query_blog_id static property.
  *
  * @param int $blog_id  If provided then will set the blog_id for the models to this id.  If not provided then the
  *                      value for get_current_blog_id() will be used.
  */
 public static function set_model_query_blog_id($blog_id = 0)
 {
     EEM_Base::$_model_query_blog_id = $blog_id > 0 ? (int) $blog_id : get_current_blog_id();
 }