import Fuse, { type IFuseOptions } from 'fuse.js';
import type Slugger from 'github-slugger';
import type { Lexer } from 'marked';
import { type TextExtractors } from '../markdown/extract';
import type { MarkdownDocument } from './document';
import type { SearchResult } from './result';
export declare function defaultFuseOptions<T>(): IFuseOptions<T>;
export type IndexingOptions<T> = {
    /**
     * The fuse index to which the indexed markdown document parts will be added.
     *
     * You can use the `defaultFuseOptions` function to get a default options object.
     */
    fuse?: Fuse<SearchResult<T>>;
    /**
     * The markdown options that are used to extract the markdown parts.
     */
    markdown?: Partial<MarkdownOptions>;
};
export type MarkdownOptions = {
    /**
     * Extractors that are used to extract text from the markdown parts.
     *
     * You can use this to override the default extractors, or to add custom ones when using marked extensions.
     */
    extractors: TextExtractors;
    /**
     * The slugger that is used to generate unique IDs for headers.
     */
    sluggerFactory: () => Slugger;
    /**
     * The lexer that is used to tokenize the markdown source.
     */
    lexerFactory: () => Lexer;
};
export declare function mergeMarkdownOptions(options?: Partial<MarkdownOptions>): MarkdownOptions;
export declare function index<T>(documents: MarkdownDocument<T>[], options?: IndexingOptions<T>): Fuse<SearchResult<T>>;