import type { StorageScope } from "./Storage.types";
export type WebStorageChangeEvent = {
    key: string | null;
    newValue: string | null;
};
export type WebStorageScope = StorageScope.Disk | StorageScope.Secure;
export type WebStorageBackend = {
    getItem: (key: string) => string | null;
    setItem: (key: string, value: string) => void;
    removeItem: (key: string) => void;
    clear: () => void;
    getAllKeys: () => string[];
    getMany?: (keys: string[]) => (string | null)[];
    setMany?: (entries: readonly (readonly [key: string, value: string])[]) => void;
    removeMany?: (keys: string[]) => void;
    size?: () => number;
    subscribe?: (listener: (event: WebStorageChangeEvent) => void) => () => void;
    flush?: () => Promise<void>;
    close?: () => void;
    name?: string;
};
export type WebDiskStorageBackend = WebStorageBackend;
export type WebSecureStorageBackend = WebStorageBackend;
type LocalStorageBackendOptions = {
    includeKey?: (key: string) => boolean;
    name?: string;
    resolveStorage?: () => Storage | undefined;
};
export declare function createLocalStorageWebBackend(options?: LocalStorageBackendOptions): WebStorageBackend;
export {};
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