export interface StorageEngine {
    getItem(key: string): any;
    setItem(key: string, value: any): any;
    removeItem(key: string): void;
}
export interface PersistConfig {
    key?: string;
    storageEngine?: StorageEngine;
    classes?: {
        [index: string]: any;
    };
    serializers?: {
        [index: string]: (obj: any, type?: any) => any;
    };
    deserializers?: {
        [index: string]: (obj: any, type?: any) => any;
    };
    migrate?: (persistIn: any, initialIn: any) => any;
}
export declare function persist<T>(initialState: T, config: PersistConfig): T;
export declare function persistAsync<T>(initialState: T, config: PersistConfig): Promise<T>;
export declare function migrate(persistIn: any, initialIn: any): any;