declare const openBtn: HTMLElement;
declare const fileList: HTMLElement;
declare const dbName = "folder-access";
declare const storeName = "handles";
declare function saveHandle(handle: any): Promise<void>;
declare function getSavedHandle(): Promise<any>;
declare function openDB(): Promise<unknown>;
declare function verifyPermission(handle: any): Promise<boolean>;
declare function readFiles(dirHandle: any): Promise<void>;