import { Editor } from "@ckeditor/ckeditor5-core";
/**
 * Configures custom mention conversion for CKEditor
 *
 * This function sets up both upcast and downcast converters to handle
 * mention elements with custom attributes like user IDs and links.
 *
 * @param editor - The CKEditor instance to configure
 */
export declare function MentionCustomization(editor: Editor): void;
export declare function FixMentionAfterSoftBreak(editor: Editor): void;