import { Rule } from "@siteimprove/alfa-act";
import type { Element } from "@siteimprove/alfa-dom";
import { Err, Ok } from "@siteimprove/alfa-result";
import type { Page } from "@siteimprove/alfa-web";
import { WithOtherHeading } from "../common/diagnostic.ts";
declare const _default: Rule.Atomic<Page, Element<string>, {}, Element<string>>;
export default _default;
/**
 * @public
 */
export declare namespace Outcomes {
    const IsStructured: (previousHeading: Element, currentLevel: number, previousLevel: number) => Ok<WithOtherHeading>;
    const IsNotStructured: (previousHeading: Element, currentLevel: number, previousLevel: number) => Err<WithOtherHeading>;
}
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