export declare class MemoryStorage {
    storage: any;
    constructor(initial?: Record<string, unknown>);
    getItem(key: string): any;
    setItem(key: string, value: unknown): void;
}
export declare class NoStorage {
    constructor(initial?: unknown);
    getItem(key: string): null;
    setItem(key: string, value: unknown): void;
}
export declare const parseL402: (input: string) => Record<string, string>;