import { UseFormStateReturn } from 'react-hook-form';
import { FormStateObserverOptions, FormStateObserverReturn } from './types';
import { FormGroup } from '../../core/form/form-groups';
/**
 * Hook for observing form state changes without causing unnecessary re-renders
 *
 * @template T - Form data type
 * @param formState - React Hook Form formState object
 * @param options - Configuration options
 * @returns Object with form state observer utilities
 *
 * @example
 * const form = useReform(config);
 * const { formState } = form.formMethods;
 * const stateObserver = useFormStateObserver(formState, {
 *   onDirtyChange: (isDirty) => {
 *     if (isDirty) saveFormDraft(form.getValues());
 *   },
 *   onErrorsChange: (hasErrors, errors) => {
 *     if (hasErrors) console.log('Form has errors:', errors);
 *   }
 * });
 */
export declare const useFormStateObserver: <T extends Record<string, any>>(formState: import("react-hook-form").FormState<{
    groups: FormGroup<T>[];
}>, options?: FormStateObserverOptions<T>) => FormStateObserverReturn<T>;