import { BoxShadowToken, BoxShadowTokenRef, PropsWithTheme } from './types';
/**
 * Returns effect that can be used inside styled-component.
 *
 * ```tsx
 * import styled from 'styled-components/macro';
 * import { effect } from '../theme';
 *
 * const StyledDiv = styled.div`
 *   ${effect("elevation/8")};
 * `;
 * ```
 */
export declare function shadow(name: BoxShadowTokenRef): (props: PropsWithTheme) => BoxShadowToken;