import { DeepReadonly } from "./common.type";
import { StateProvider } from "./state.type";
export declare abstract class StateProviderService<T extends object> {
    private _stateProvider;
    constructor(_stateProvider: StateProvider<T>);
    get state$(): import("rxjs").Observable<DeepReadonly<T>>;
    protected get currentState(): DeepReadonly<T>;
    protected updateState(updateCallback: (prevState: DeepReadonly<T>) => DeepReadonly<T>): void;
    protected patchState(patchCallback: ((prevState: DeepReadonly<T>) => DeepReadonly<Partial<T>>) | DeepReadonly<Partial<T>>): void;
}