import { type Store } from 'killa/core';
export interface StoreWithPersist {
    $$persist: symbol;
    name: string;
    destroy: () => void;
    rehydrate: () => void;
    hydrated: () => boolean;
}
declare module '../core' {
    interface Store {
        persist?: StoreWithPersist;
    }
}
/** Killa Storage API interface. */
export interface CustomStorage<T> {
    /**
     * Returns the current value associated with the given key,
     * or null if the given key does not exist.
     **/
    getItem: (name: string) => T | null;
    /**
     * Sets the value of the pair identified by key to value, creating a
     * new key/value pair if none existed for key previously.
     */
    setItem: (name: string, value: unknown) => void;
    /**
     * Removes the key/value pair with the given key, if a key/value pair with
     * the given key exists.
     */
    removeItem: (name: string) => void;
}
export interface PersistConfig<T> {
    /** Storage name (unique) */
    name?: string;
    /**
     * @default () => localStorage
     */
    storage?: CustomStorage<T> | (() => CustomStorage<T>);
    merge?: (state: T, persistedState: T) => T;
    /**
     * Enable Revalidate mode
     * @default true
     */
    revalidate?: boolean;
    /**
     *  Timeout to trigger the revalidate event in milliseconds
     * @default 200
     */
    revalidateTimeout?: number;
    /**
     *  Encrypt store using btoa and atob
     * @default false
     */
    encrypted?: boolean;
}
export declare const normalizeStorage: <T>(initializerStorage: () => CustomStorage<T>, { encrypted }?: {
    encrypted?: boolean | undefined;
}) => CustomStorage<T> | null;
export declare const initRevalidateOnFocus: (listener: () => void) => () => void;
export declare const persist: <T>(config: PersistConfig<T>) => (store: Store<T>) => void;