import type { Candidate } from "./parser-types";
export type CandidateWithSuggestion = Candidate & {
    suggestionText: string;
};
export interface CandidateFactory {
    createPoint(args: {
        date: Date;
        suggestionText: string;
        confidence: number;
        source: Candidate["source"];
        id?: string;
    }): CandidateWithSuggestion;
    createRange(args: {
        startDate: Date;
        endDate: Date;
        suggestionText: string;
        confidence: number;
        source: Candidate["source"];
    }): CandidateWithSuggestion;
}
export declare function createCandidateFactory(timeZone: string): CandidateFactory;
export declare function startOfMinute(inputDate: Date): Date;
export declare function getCanonicalValue(candidate: Candidate | null): string | null;