private function filesExist()
    {
        foreach (static::FILES as $file) {
            if (!file_exists($this->storage($file))) {
                return false;
            }
        }

        return true;
    }
private function filesExist()
    {
        foreach (static::FILES as $file) {
            if (!file_exists($this->storage($file))) {
                return false;
            }
        }

        return true;
    }
private function filesExist ( ) { foreach ( static :: FILES as $ file ) { if ( ! file_exists ( $ this -> storage ( $ file ) ) ) { return false ; } } return true ; }
Returns if all needed remote data files defined in FILES exist locally

@return boolean
Returns if all needed remote data files defined in FILES exist locally