import type { QuestionAnswersBySign, SignQuestion, SignStateType } from '../data-definitions/TrafficSignDataTypes.js';
/** Stable key for questions with identical options and tagging effects. */
export declare const getQuestionEquivalenceKey: (question: SignQuestion) => string;
export type SignQuestionGroup = {
    equivalenceKey: string;
    question: SignQuestion;
    signOsmValueParts: string[];
    signs: SignStateType[];
};
export declare const collectSignQuestionGroups: (signs: SignStateType[]) => SignQuestionGroup[];
export declare const resolveGroupedSelectedAnswerId: (answers: QuestionAnswersBySign | undefined, signOsmValueParts: readonly string[], questionId: string) => string | undefined;
export declare const resolveGroupedEffectiveAnswerId: (question: SignQuestion, answers: QuestionAnswersBySign | undefined, signOsmValueParts: readonly string[]) => string;
/** Copy one explicit answer onto every sign that shares the same question. */
export declare const syncEquivalentQuestionAnswers: (answers: QuestionAnswersBySign, signs: SignStateType[]) => QuestionAnswersBySign;
/** Keep one sign entry per shared question in URL/cache payloads. */
export declare const dedupeEquivalentAnswersForUrl: (answers: QuestionAnswersBySign, signs: SignStateType[]) => QuestionAnswersBySign;
//# sourceMappingURL=groupSignQuestions.d.ts.map