import { type Ref } from '#imports';
import type { TourItem } from '../features/tour/types.js';
type TourProviderFunction = () => TourItem[] | TourItem | undefined;
export type TourProvider = {
    /**
     * Register a tour provider function.
     *
     * The function will be called when tour items are requested.
     * It can return a single tour item, an array of tour items, or undefined.
     *
     * @param fn - Function that returns tour item(s)
     *
     * @example
     * ```ts
     * tour.add(() => ({
     *   id: 'welcome',
     *   title: 'Welcome',
     *   text: 'Welcome to the editor!',
     *   element: '.bk-main-canvas',
     * }))
     * ```
     */
    add: (fn: TourProviderFunction) => void;
    /**
     * Unregister a tour provider function.
     *
     * Removes a previously registered function so it no longer provides tour items.
     *
     * @param fn - The function to remove (must be the same reference used in add)
     */
    remove: (fn: TourProviderFunction) => void;
    /**
     * Get all tour items from all registered providers.
     *
     * Calls all registered provider functions, flattens the results,
     * and filters out undefined values.
     *
     * @returns Array of all available tour items
     */
    getTourItems: () => TourItem[];
    /**
     * Whether a tour is currently active.
     *
     * Set to true when a tour starts, false when it ends.
     */
    isTouring: Ref<boolean>;
};
export default function (): TourProvider;
export {};