import type { Root, Yaml } from 'mdast';
import { type Options } from 'remark-stringify';
import type { NormalizedReferenceSource, ReferenceItem } from './types.js';
export declare const RELATIVE_URL_PATTERN: RegExp;
export declare const normalizeReferenceItems: (items?: ReferenceItem[]) => Record<string, NormalizedReferenceSource>;
export declare const stringifySettings: Options;
export declare const mdProcessor: import("unified").Processor<Root, undefined, undefined, Root, string>;
export declare const mdxProcessor: import("unified").Processor<Root, undefined, undefined, Root, string>;
export declare const getFrontmatterNode: (ast: Root) => Yaml | undefined;
export declare const isCI: boolean;
