import type { Entity, KnownEntityItem } from 'roosterjs-editor-types';
/**
 * @deprecated
 * Create a placeholder comment node for entity
 * @param entity The entity to create placeholder from
 * @returns A placeholder comment node as
 */
export declare function createEntityPlaceholder(entity: Entity): HTMLElement;
/**
 * Move content from a container into a new Document fragment, and try keep entities to be reusable by creating placeholder
 * for them in the document fragment.
 * If an entity is directly under root container, the whole entity can be reused and no need to move it at all.
 * If an entity is not directly under root container, it is still reusable, but it may need some movement.
 * In any case, entities will be replaced with a placeholder in the target document fragment.
 * We will use an entity map (the "entities" parameter) to save the map from entity id to its wrapper element.
 * @param root The root element
 * @param entities A map from entity id to entity wrapper element
 * @returns A new document fragment contains all the content and entity placeholders
 */
export declare function moveContentWithEntityPlaceholders(root: HTMLDivElement, entities: Record<string, HTMLElement>): DocumentFragment;
/**
 * Restore HTML content from a document fragment that may contain entity placeholders.
 * @param source Source document fragment that contains HTML content and entity placeholders
 * @param target Target container, usually to be editor root container
 * @param entities A map from entity id to entity wrapper, used for reusing existing DOM structure for entity
 * @param insertClonedNode When pass true, merge with a cloned copy of the nodes from source fragment rather than the nodes themselves @default false
 */
export declare function restoreContentWithEntityPlaceholder(source: ParentNode, target: HTMLElement, entities: Record<string, HTMLElement | KnownEntityItem> | null, insertClonedNode?: boolean): void;