import { FormApi, FormAsyncValidateOrFn, FormValidateOrFn } from './FormApi.js';
/**
 * @private
 */
export declare function mutateMergeDeep(target: object | null | undefined, source: object | null | undefined): object;
export declare function mergeForm<TFormData, TOnMount extends undefined | FormValidateOrFn<TFormData>, TOnChange extends undefined | FormValidateOrFn<TFormData>, TOnChangeAsync extends undefined | FormAsyncValidateOrFn<TFormData>, TOnBlur extends undefined | FormValidateOrFn<TFormData>, TOnBlurAsync extends undefined | FormAsyncValidateOrFn<TFormData>, TOnSubmit extends undefined | FormValidateOrFn<TFormData>, TOnSubmitAsync extends undefined | FormAsyncValidateOrFn<TFormData>, TOnDynamic extends undefined | FormValidateOrFn<TFormData>, TOnDynamicAsync extends undefined | FormAsyncValidateOrFn<TFormData>, TOnServer extends undefined | FormAsyncValidateOrFn<TFormData>, TSubmitMeta = never>(baseForm: FormApi<TFormData, TOnMount, TOnChange, TOnChangeAsync, TOnBlur, TOnBlurAsync, TOnSubmit, TOnSubmitAsync, TOnDynamic, TOnDynamicAsync, TOnServer, TSubmitMeta>, state: Partial<FormApi<TFormData, TOnMount, TOnChange, TOnChangeAsync, TOnBlur, TOnBlurAsync, TOnSubmit, TOnSubmitAsync, TOnDynamic, TOnDynamicAsync, TOnServer, TSubmitMeta>['state']>): FormApi<TFormData, TOnMount, TOnChange, TOnChangeAsync, TOnBlur, TOnBlurAsync, TOnSubmit, TOnSubmitAsync, TOnDynamic, TOnDynamicAsync, TOnServer, TSubmitMeta>;