import { BaseType, Middleware } from "..";
export interface PersistOptions<S> {
    /** Storage Key (must be unique) */
    key: string;
    /**
     * Filter the persisted value.
     *
     * @params state The state's value
     */
    partialize?: (state: S) => Partial<S>;
    /**
     * If the stored state's version mismatch the one specified here, the storage will not be used.
     * This is useful when adding a breaking change to your store.
     */
    version?: number;
    /**
     * A function to perform persisted state migration.
     * This function will be called when persisted state versions mismatch with the one specified here.
     */
    migrate?: (persistedState: unknown, version: number) => Partial<S> | Promise<Partial<S>>;
}
export declare const persist: <T extends BaseType>(options: PersistOptions<T>) => Middleware<T>;