import { CompletionItemGroup, CompletionItem } from '../types';
declare type IFlattenGroupItems = (groupedItems: CompletionItemGroup[]) => CompletionItem[];
export declare const flattenGroupItems: IFlattenGroupItems;
export declare const calculateLongestLabel: (allItems: CompletionItem[]) => string;
export declare const calculateListSizes: (longestLabel: string, allItems: CompletionItem[]) => {
    listHeight: number;
    listWidth: number;
};
export {};