      - returns: the securized URL
      */
     public func getSecurityScopedURLFrom(_ url: URL, appScoped: Bool=false, documentfileURL: URL?=nil)throws -> URL {
-        let key=_getBookMarkKeyFor(url, appScoped: appScoped, documentfileURL: documentfileURL)
+        let key=self._getBookMarkKeyFor(url, appScoped: appScoped, documentfileURL: documentfileURL)
         if let stringifyedData=self.metadata.URLBookmarkData[key] as? String {
             if let base64EncodedData=stringifyedData.data(using: Default.STRING_ENCODING) {
                 if let data=Data(base64Encoded: base64EncodedData, options: [.ignoreUnknownCharacters]) {

     Stops to access to all the security Scoped Resources
     */
    public func stopAccessingAllSecurityScopedResources() {
        while  let key = _activeSecurityBookmarks.first {
            stopAccessingToSecurityScopedResourceAtURL(key as URL)
        }
    }


     */
    public func stopAccessingToSecurityScopedResourceAtURL(_ scopedUrl: URL) {
        scopedUrl.stopAccessingSecurityScopedResource()
        if let idx=self._activeSecurityBookmarks.index(of: scopedUrl) {
            self._activeSecurityBookmarks.remove(at: idx)
        }

    }
