import type { Field, TextField } from 'payload';
/**
 * Normalizes a string into a URL slug. slugify handles diacritics out of the
 * box (Polish included: "Strona główna" → "strona-glowna").
 */
export declare function toSlug(input: string): string;
type BuildSlugFieldOptions = {
    /** Source field to derive the slug from. Default: 'title'. */
    from?: string;
    /** Whether the slug is localized (per-locale). Default: true. */
    localized?: boolean;
    /** Field name for the slug. Default: 'slug'. */
    name?: string;
    /** Override or extend the generated field config. */
    overrides?: Partial<TextField>;
    /** Whether the slug is required. Default: true. */
    required?: boolean;
};
/**
 * Builds a slug field that auto-generates from a source field (default 'title')
 * only when left empty — an editor's manual slug is never overwritten (mode 4a).
 *
 * Localized-safe: on a localized field Payload runs the hook per locale, so
 * `value` is the slug for the active locale and `siblingData[from]` is the
 * source in that same locale. Editing the doc in 'pl' fills slug.pl from
 * title.pl; editing in 'en' fills slug.en from title.en — giving genuinely
 * per-locale slugs (strona-glowna / homepage) that the language switcher needs.
 */
export declare function buildSlugField(options?: BuildSlugFieldOptions): Field;
export {};