Illuminate\Database\Query\Builder::orWhereNotExists PHP Method

    public function orWhereNotExists(Closure $callback)
    {
        return $this->orWhereExists($callback, true);
    }

 /**
  * Add a where not exists clause to the query.
  *
  * @param \Closure $callback
  * @return \Illuminate\Database\Query\Builder|static 
  * @static 
  */
 public static function orWhereNotExists($callback)
 {
     return \Illuminate\Database\Query\Builder::orWhereNotExists($callback);
 }