public function storagePath(?string $storagePath = null) {
        if ($storagePath != null) {
            $this->storagePath = $storagePath;
        }
        else if (!isset($this->storagePath)) {
            $this->storagePath = get_property("app.storage_path", $this->basePath . DIRECTORY_SEPARATOR . "storage");
        }
        return $this->storagePath;
    }