protected static function getBuilder()
    {
        if (self::$builder === null) {
            $setup = new Setup();
            self::$builder = $setup->run();
        }
        return self::$builder;
    }
protected static function getBuilder()
    {
        if (self::$builder === null) {
            $setup = new Setup();
            self::$builder = $setup->run();
        }
        return self::$builder;
    }
protected static function getBuilder ( ) { if ( self :: $ builder === null ) { $ setup = new Setup ( ) ; self :: $ builder = $ setup -> run ( ) ; } return self :: $ builder ; }
Returns builder instance.

@return \Nayjest\Builder\Builder
Returns builder instance .