/**
 * Storage Adapter Interface
 * Allows swapping between localStorage (browser) and in-memory storage (Node.js)
 */
export interface IStorageAdapter {
    getItem(key: string): string | null;
    setItem(key: string, value: string): void;
    removeItem(key: string): void;
    clear(): void;
}
/**
 * In-Memory Storage Adapter for Node.js environments
 */
export declare class InMemoryStorageAdapter implements IStorageAdapter {
    private storage;
    getItem(key: string): string | null;
    setItem(key: string, value: string): void;
    removeItem(key: string): void;
    clear(): void;
}
/**
 * Browser localStorage Adapter
 */
export declare class BrowserStorageAdapter implements IStorageAdapter {
    getItem(key: string): string | null;
    setItem(key: string, value: string): void;
    removeItem(key: string): void;
    clear(): void;
}
/**
 * Factory to get the appropriate storage adapter based on environment
 */
export declare function getStorageAdapter(): IStorageAdapter;