import * as React from 'react';
import type { ChangeDetails, RenderProp } from '../../contracts/components.js';
export { defineMeta } from './meta.js';
/** S-32. Normalises a Base UI event-details object (or raw Event) into ChangeDetails. */
export declare const toChangeDetails: (eventDetails: unknown) => ChangeDetails;
/**
 * S-32 render-prop. `render` may be a React element (cloned with merged props) or a
 * function `(props, state) => element`. The fallback element is used when render is
 * absent. props merge shallowly; className concatenates (render's own last wins on
 * conflicts), style merges, refs compose.
 */
export declare function renderElement<P extends object>(render: RenderProp<P> | undefined, fallback: React.ReactElement, props: P, state?: object): React.ReactElement;