import { EncryptedKey } from "../types";
export interface BrowserStorageConfigParams {
    prefix?: string;
    storage: {
        get: (key?: string | string[] | {}) => Promise<{}>;
        remove: (key: string | string[]) => Promise<void>;
        set: (items: {}) => Promise<{}>;
    };
}
export declare class BrowserStorageFacade {
    private storage;
    private prefix;
    constructor();
    configure(params: BrowserStorageConfigParams): void;
    hasKey(id: string): Promise<boolean | null>;
    getKey(id: string): Promise<any>;
    setKey(id: string, key: EncryptedKey): any;
    removeKey(id: string): any;
    getAllKeys(): Promise<EncryptedKey[]>;
    private check;
}