/// <reference types="react" />
import { FormData } from '../types/FormData';
import { CreateFieldFunction, DeleteFieldFunction, GetFieldFunction, UpdateFieldFunction } from '../types/FormContextProps';
/**
 * Custom hook to manage form state.
 * @param initialData - The initial data for the form, can be an object or a promise resolving to an object.
 * @returns An object containing form data and functions to manipulate it.
 */
export declare const useFormState: (initialData: FormData | Promise<any>) => {
    formData: FormData;
    setFormData: import("react").Dispatch<import("react").SetStateAction<FormData>>;
    getField: GetFieldFunction;
    createField: CreateFieldFunction;
    updateField: UpdateFieldFunction;
    deleteField: DeleteFieldFunction;
    initialDataLoaded: boolean;
    initialDataError: string | boolean;
};