export interface MatchCandidate {
    name: string;
    alternateNames?: string[];
}
export interface MatchResult<T extends MatchCandidate> {
    item: T;
    score: number;
    matchedVia: "exact" | "fuzzy";
}
/**
 * Match an external entity to a list of DB candidates by name similarity.
 *
 * Compares every combination of `externalNames` × candidate `name + alternateNames`.
 * Returns the best match above the threshold, or null.
 *
 * @param externalNames - External name(s) to match (e.g. main name + alternates)
 * @param candidates    - DB records with `name` and optional `alternateNames`
 * @param threshold     - Minimum similarity score (default 0.5)
 */
export declare function matchByName<T extends MatchCandidate>(externalNames: string[], candidates: T[], threshold?: number): MatchResult<T> | null;
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