import * as Cookie from 'js-cookie';
import { JSONObject } from '../models';
import IStorage from '../core/IStorage';
declare class CookieStorage implements IStorage {
    getItem(key: string): string;
    removeItem(key: string): void;
    setItem(key: string, value: string | object, options?: Cookie.CookieAttributes): string;
}
declare class LocalStorage implements IStorage {
    constructor();
    storage: Storage;
    getItem(key: string): string;
    removeItem(key: string): void;
    setItem(key: string, value: string, options?: any): void;
}
/** does not store or retrieve any values - allows 'disabling' of storage */
export declare class DummyStorage implements IStorage {
    getItem(key: any): any;
    removeItem(key: any): void;
    setItem(key: any, value: any, options?: any): void;
}
/** stores items in memory - does not persist across instances */
export declare class MemoryStorage implements IStorage {
    memoryCache: JSONObject;
    getItem(key: any): any;
    removeItem(key: any): void;
    setItem(key: any, value: any, options?: any): void;
}
declare class StorageHandler implements IStorage {
    constructor(options?: {
        tryLocalStorageFirst: boolean;
    });
    storage: LocalStorage | CookieStorage | DummyStorage | IStorage;
    triedLocalStorage: boolean;
    triedCookieStorage: boolean;
    failover(): void;
    getItem(key: string): any;
    removeItem(key: string): void;
    setItem(key: any, value: string | object, options?: any): string | void;
}
export default StorageHandler;