import { Descendant } from 'slate';
export declare const DEFAULT_VALUE: Descendant[];
export declare const CUSTOM_ELEMENT_TYPES: {
    mention: string;
};
export declare const NEW_ITEM_KEY = "new-item";
export declare const MENTION_PATTERN: RegExp;
export declare const WHITE_SPACE_PATTERN: RegExp;
export declare const MENTION_SEARCH_FIELD = "username";
export declare const MENTION_SEARCH_FIELDS: string[];
