import { type IContentItem, type IContentItemElements } from "@kontent-ai/delivery-sdk";
import type { IUpdateMessageData } from "../lib/IFrameCommunicatorTypes";
/**
 * Applies an update to a content item synchronously.
 * This function takes a content item and an update message, and returns a new content item with the updates applied.
 * The update is applied recursively to all linked items within the content item.
 */
export declare const applyUpdateOnItem: <Elements extends IContentItemElements>(item: IContentItem<Elements>, update: IUpdateMessageData) => IContentItem<Elements>;
/**
 * Applies an update to a content item asynchronously and loads newly added linked items.
 * This function takes a content item, an update message, and a function to fetch linked items,
 * and returns a promise that resolves to a new content item with the updates applied.
 * The update is applied recursively to all linked items within the content item.
 */
export declare const applyUpdateOnItemAndLoadLinkedItems: <Elements extends IContentItemElements>(item: IContentItem<Elements>, update: IUpdateMessageData, fetchItems: (itemCodenames: ReadonlyArray<string>) => Promise<ReadonlyArray<IContentItem>>) => Promise<IContentItem<Elements>>;