import { Storage } from "./env.models";
export declare class NullStorage implements Storage {
    all<T = Record<string, unknown>>(): Promise<T>;
    get<T = any>(key: string): Promise<T | undefined>;
    set(key: string, value: string): Promise<void>;
    has(key: string): Promise<boolean>;
    forget(key: string): Promise<void>;
    flush(): Promise<void>;
    count(): Promise<number>;
    snapshot(): Promise<void>;
    restore(): Promise<void>;
}