import { KeyClockStorage } from './keycloak.storage';
import { Storage } from '@ionic/storage';
/**
 * To store Keycloak objects like tokens using a localStorage.
 */
export declare class IonicStorage implements KeyClockStorage {
    private storage;
    constructor(storage: Storage);
    clearExpired(): void;
    get(state: string): Promise<any>;
    add(state: any): void;
}