import { TokenCacheItem } from '../models';
import { StorageAdapter } from '../models/storage-adapter.model';
import { TokenCache } from '../models/token-cache.model';
export declare class TokenCacheStorage implements TokenCache {
    private storage;
    private logPrefix;
    private keyPrefix;
    constructor(storageAdapter: StorageAdapter, keyPrefix: string);
    get(key: string): Promise<TokenCacheItem | null>;
    set(key: string, token: TokenCacheItem, ttl?: number): Promise<void>;
    delete(key: string): Promise<void>;
    private buildKey;
}