import { BaseState } from './base.state';
/**
 *	@class
 *	@classdes Object state class. Used for save state with Object type.
 */
export declare abstract class ObjectState<T extends object> extends BaseState<T> {
    /**
     *  Updates state by merging new partial object with the existing one.
     *  @public
     *  @param {T | null} value - the value that should be set to update `BehaviorSubject`.
     */
    updateWithPartial(value: Partial<T>): void;
    protected setNewValue(value: T | null): void;
    protected catchError(error: Error | TypeError, actionName: string): void;
    protected validateDataType(data: unknown): void;
}