import "./spacer.css";
import type * as React from "react";
import { useRender } from "@base-ui/react/use-render";
import { type StyleProps } from "./style_props";
import { type SpaceToken } from "./spacing";
export interface SpacerProps extends StyleProps {
    /** Fixed air. Left out, the spacer takes whatever room is left. */
    size?: SpaceToken;
    horizontal?: boolean;
    ref?: React.Ref<HTMLElement>;
    render?: useRender.RenderProp;
}
/**
 * Empty room between two things.
 *
 * Prefer a `gap` on the `Stack` around them: a gap belongs to the layout and
 * survives a child being removed, while a spacer is a sibling that has to be
 * removed with it.
 */
export declare function Spacer({ size, horizontal, render, ref, ...props }: SpacerProps): React.ReactElement<unknown, string | React.JSXElementConstructor<any>>;