export interface IStorage {
    getItem(key: string): string | null;
    setItem(key: string, value: string): void;
    removeItem(key: string): void;
}
export declare class WindowLocalStorage implements IStorage {
    private storage;
    constructor();
    getItem(key: string): string | null;
    removeItem(key: string): void;
    setItem(key: string, value: string): void;
    clear(): void;
}
export declare class KeyTransformStorage implements IStorage {
    private readonly delegate;
    private readonly transform;
    constructor(delegate: IStorage, transform: (key: string) => string);
    static postfix(delegate: IStorage, postfix: string): KeyTransformStorage;
    static prefix(delegate: IStorage, prefix: string): KeyTransformStorage;
    getItem(key: string): string | null;
    removeItem(key: string): void;
    setItem(key: string, value: string): void;
}
declare type Item<T> = Record<string, T>;
export declare class ListStorage<Value = string> {
    private delegate;
    private listKey;
    private maxLength;
    private encodedListCharLen;
    private resolveMaxLength;
    constructor(delegate: IStorage, listKey: string, maxLength?: number);
    private isEqualItem;
    private getRemainListSize;
    private isAddableItem;
    private getVictimIndex;
    getList(): Item<Value>[];
    entries(): [string, Value][];
    setItem(key: string, value: Value): void;
    getItem(key: string): Value | undefined;
    removeItem(key: string): void;
    clear(): void;
}
export {};