/**
 * Browser-friendly reference data loader using fetch.
 */
import type { CoreList, CommonWordsData, SynonymsData } from '../metrics/types';
import type { ReferenceDataProvider } from './index';
export interface ReferenceData {
    coreLists: CoreList[];
    commonWords: CommonWordsData;
    synonyms: SynonymsData;
    sentences: string[][];
    fringe: string[];
    baseWords: {
        [word: string]: boolean;
    };
}
export declare class InMemoryReferenceLoader implements ReferenceDataProvider {
    private data;
    constructor(data: ReferenceData);
    loadCoreLists(): Promise<CoreList[]>;
    loadCommonWords(): Promise<CommonWordsData>;
    loadSynonyms(): Promise<SynonymsData>;
    loadSentences(): Promise<string[][]>;
    loadFringe(): Promise<string[]>;
    loadBaseWords(): Promise<{
        [word: string]: boolean;
    }>;
    loadCommonFringe(): Promise<string[]>;
    loadAll(): Promise<ReferenceData>;
}
export declare function loadReferenceDataFromUrl(baseUrl: string, locale?: string): Promise<ReferenceData>;
export declare function createBrowserReferenceLoader(baseUrl: string, locale?: string): Promise<InMemoryReferenceLoader>;