import { ToastOptions } from './toast';
/**
 * Internal toast state stored in the toast store.
 *
 * @category Toast
 */
export type ToastState = Required<Pick<ToastOptions, 'id'>> & Omit<ToastOptions, 'id'>;
/**
 * Partial update object used when modifying a toast.
 *
 * @category Toast
 */
export type ToastUpdate = Partial<Omit<ToastOptions, 'id'>>;
/**
 * Subscriber function receiving current toast list.
 *
 * @category Toast
 */
export type ToastStoreSubscriber = (toasts: ToastState[]) => void;
/**
 * Internal store managing toast lifecycle and subscriptions.
 *
 * @category Toast
 */
export declare const toastStore: {
    /**
     * Subscribes to toast state updates.
     *
     * @function
     */
    subscribe(subscriber: ToastStoreSubscriber): () => void;
    /**
     * Adds a new toast to the store.
     *
     * Priority toasts are inserted at the beginning
     * so they appear before normal queued toasts.
     *
     * @function
     */
    add(toast: ToastState): void;
    /**
     * Updates an existing toast.
     *
     * @function
     */
    update(id: string, partial: ToastUpdate): void;
    /**
     * Removes a toast from the store.
     *
     * @function
     */
    remove(id: string): void;
    /**
     * Removes all toasts.
     *
     * @function
     */
    clear(): void;
    /**
     * Returns current toast list snapshot.
     *
     * @function
     */
    getState(): ToastState[];
};