import { Diagnostic, Rule } from "@siteimprove/alfa-act";
import type { Document } from "@siteimprove/alfa-dom";
import { Node } from "@siteimprove/alfa-dom";
import { Err, Ok } from "@siteimprove/alfa-result";
import type { Page } from "@siteimprove/alfa-web";
import { Question } from "../common/act/index.ts";
/**
 * This rule asks whether the page has repeated content before its main
 * content, unless it can automatically answer false when there is no
 * accessible content before the main element.
 *
 * It tries to locate the main landmarks (elements with role of main),
 * and asks a question if it doesn't find any.
 */
declare const _default: Rule.Atomic<Page, Document, Question.Metadata, Node>;
export default _default;
/**
 * @public
 */
export declare namespace Outcomes {
    const HasNoMainContent: Ok<Diagnostic>;
    const HasNoRepeatedContentBeforeMain: Ok<Diagnostic>;
    const HasRepeatedContentBeforeMain: Err<Diagnostic>;
}
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