export declare const DATABASE_DEFAULT_KEY = "default";
export declare const DATABASE_NAME = "alshdavid:localstorage";
export declare class Connection {
    #private;
    constructor(storeKey?: string);
    listItems(): Promise<string[]>;
    getItem<T extends string | ArrayBuffer | unknown = unknown>(key: string): Promise<T | null>;
    setItem(key: string, value: IDBValidKey): Promise<void>;
    removeItem(key: string): Promise<void>;
    getItemJson<T = unknown>(key: string): Promise<T | null>;
    setItemJson(key: string, value: any): Promise<void>;
    close(): Promise<void>;
}