import { Diagnostic, Rule } from "@siteimprove/alfa-act";
import type { Document } from "@siteimprove/alfa-dom";
import { Err, Ok } from "@siteimprove/alfa-result";
import type { Page } from "@siteimprove/alfa-web";
import { Question } from "../common/act/question.ts";
declare const _default: Rule.Atomic<Page, Document, Question.Metadata, Document>;
export default _default;
/**
 * @public
 */
export declare namespace Outcomes {
    const HasNoTabbable: Err<Diagnostic>;
    const FirstTabbableIsNotLink: Err<Diagnostic>;
    const FirstTabbableIsNotInternalLink: Err<Diagnostic>;
    const FirstTabbableIsIgnored: Err<Diagnostic>;
    const FirstTabbableIsNotVisible: Err<Diagnostic>;
    const FirstTabbableIsLinkToContent: Ok<Diagnostic>;
    const FirstTabbableIsNotLinkToContent: Err<Diagnostic>;
}
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