import { UVEEventPayloadMap, UVEEventSubscription, UVEEventType, UVEState } from '@dotcms/types';
/**
 * Gets the current state of the Universal Visual Editor (UVE).
 *
 * This function checks if the code is running inside the DotCMS Universal Visual Editor
 * and returns information about its current state, including the editor mode.
 *
 * @export
 * @return {UVEState | undefined} Returns the UVE state object if running inside the editor,
 * undefined otherwise.
 *
 * The state includes:
 * - mode: The current editor mode (preview, edit, live)
 * - languageId: The language ID of the current page setted on the UVE
 * - persona: The persona of the current page setted on the UVE
 * - variantName: The name of the current variant
 * - experimentId: The ID of the current experiment
 * - publishDate: The publish date of the current page setted on the UVE
 *
 * @note The absence of any of these properties means that the value is the default one.
 *
 * @example
 * ```ts
 * const editorState = getUVEState();
 * if (editorState?.mode === 'edit') {
 *   // Enable editing features
 * }
 * ```
 */
export declare function getUVEState(): UVEState | undefined;
/**
 * Creates a subscription to a UVE event.
 *
 * @param eventType - The type of event to subscribe to
 * @param callback - The callback function that will be called when the event occurs
 * @returns An event subscription that can be used to unsubscribe
 *
 * @example
 * ```ts
 * // Subscribe to page changes
 * const subscription = createUVESubscription(UVEEventType.CONTENT_CHANGES, (changes) => {
 *   console.log('Content changes:', changes);
 * });
 *
 * // Later, unsubscribe when no longer needed
 * subscription.unsubscribe();
 * ```
 */
export declare function createUVESubscription<T extends UVEEventType>(eventType: T, callback: (payload: UVEEventPayloadMap[T] extends undefined ? void : UVEEventPayloadMap[T]) => void): UVEEventSubscription;