import type { ChallengeBundle, KemAdapter, PQSealEnvelope } from './types.js';
export declare const VERSION = 1;
export declare function assertPositiveInteger(name: string, value: number): void;
export declare function assertEnvelope(envelope: PQSealEnvelope): void;
export declare function assertBundle(bundle: ChallengeBundle): void;
export declare function normalizeKems(kems?: Iterable<KemAdapter>): Map<string, KemAdapter>;
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