import type { IHiccupShape2 } from "../api.js";
/**
 * Dummy shape container for arbitrary hiccup elements. See {@link extra} for
 * more details.
 */
export declare class Extra implements IHiccupShape2<Extra> {
    body: any[];
    readonly type = "extra";
    readonly dim = 2;
    constructor(body: any[]);
    copy(): Extra;
    withAttribs(): Extra;
    toHiccup(): any[];
}
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