import { type Ref } from 'vue';
export interface HistoryStateRef<T> extends Ref<T> {
    save(): void;
}
type HistoryStateRefOptions = {
    key: string;
    deep?: boolean;
    debounce?: number;
};
type HistoryStateRefNoDefault = {
    default?: never;
};
type HistoryStateRefDefault<T> = {
    default: () => T;
};
export declare function historyStateRef<T>(options: HistoryStateRefOptions & HistoryStateRefDefault<T>): HistoryStateRef<T>;
export declare function historyStateRef<T>(options: HistoryStateRefOptions & HistoryStateRefNoDefault): HistoryStateRef<T | null>;
export {};