import { FormState } from '../types';
declare abstract class BaseManager<S extends object> {
    abstract get(): FormState<S>;
    abstract set(state: FormState<S>): void;
    abstract watch<P = FormState<S>>(selector: ((state: FormState<S>) => P) | null, handler: (prev: P, next: P) => void, defaultState: P): () => void;
    abstract remove(): void;
}
export default BaseManager;