import type { PartitivePresence } from './partitive-presence.js';
import type { PartitiveCount } from './partitive-count.js';
export type MultiplicityName = 'compulsory' | 'optional' | 'compulsory_multiple' | 'optional_multiple' | 'compulsory_at_least_one';
export declare const MULTIPLICITY: Readonly<Record<Uppercase<MultiplicityName>, MultiplicityName>>;
export declare const MULTIPLICITY_VALUES: ReadonlyArray<MultiplicityName>;
export declare const DEFAULT_MULTIPLICITY: MultiplicityName;
export declare function multiplicityFromPair(presence: PartitivePresence, count: PartitiveCount): MultiplicityName;
/**
 * Canonical error for the invalid (presence, count) combination.
 * Single source of truth — hyperedge-member.ts delegates to this so
 * the error string doesn't drift across the two files.
 */
export declare function invalidCombinationError(presence: unknown, count: unknown): Error;
export declare function pairFromMultiplicity(name: MultiplicityName): {
    presence: PartitivePresence;
    count: PartitiveCount;
};
export declare function isValidMultiplicity(name: unknown): name is MultiplicityName;
interface MemberWithMultiplicity {
    presence?: PartitivePresence;
    count?: PartitiveCount;
    multiplicity?: string;
}
/**
 * Resolve the ISO 704 multiplicity name from any object carrying
 * `presence` + `count`, OR a legacy object that still has a literal
 * `multiplicity` field (pre-v4 JSON).
 *
 * For v4 `PartitiveMember` instances, `presence` + `count` are always
 * set (defaults applied at construction), so the legacy branch never
 * fires on a real instance — it exists purely to round-trip raw JSON
 * that bypassed the model constructor.
 *
 * Throws on the invalid `(optional, at_least_one)` combination — the
 * model already rejects this at construction, so reaching the throw
 * here means the caller bypassed the model. Let the error propagate
 * rather than silently returning 'compulsory' (which would mask the
 * data corruption).
 */
export declare function resolveMultiplicity(member: MemberWithMultiplicity | null | undefined): MultiplicityName | string;
export {};
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