import type { FormData, FormSchema, FormSubmitEvent, InferInput } from '@nuxt/ui';
import type { MaybeRefOrGetter } from 'vue';
export declare function useFormState<S extends FormSchema>(schema: MaybeRefOrGetter<S>, source?: MaybeRefOrGetter<Partial<InferInput<S>>>, options?: {
    success?: string;
}): {
    schema: import("vue").ComputedRef<S>;
    state: import("vue").Ref<Partial<InferInput<S>>, Partial<InferInput<S>>>;
    isModified: import("vue").Ref<boolean, boolean>;
    isLoading: import("vue").Ref<boolean, boolean>;
    reset: () => void;
    onSubmit: (fn: Parameters<import("@vueuse/shared").EventHookOn<FormSubmitEvent<import("@nuxt/ui").InferOutput<S>>>>[0]) => (event: FormSubmitEvent<FormData<S>>) => Promise<void>;
};