interface SamlAssertionReplayStore {
    consume(assertionId: string): Promise<void>;
}
/**
 * Drop stored IDs only after SAML NotOnOrAfter would already reject them.
 * 1 hour is longer than typical assertion lifetimes (minutes) plus
 * SamlServiceProvider acceptedClockSkewMs (5000).
 */
declare const REPLAY_RETENTION_MS: number;
declare class InMemorySamlAssertionReplayStore implements SamlAssertionReplayStore {
    private readonly seen;
    consume(assertionId: string): Promise<void>;
    clear(): void;
    private gc;
}
declare function setSamlAssertionReplayStoreForTests(store: SamlAssertionReplayStore | null): void;
declare function resetSamlReplayCacheForTests(): void;
declare function consumeSamlAssertion(assertionId: string): Promise<void>;
export type { SamlAssertionReplayStore };
export { consumeSamlAssertion, InMemorySamlAssertionReplayStore, REPLAY_RETENTION_MS, resetSamlReplayCacheForTests, setSamlAssertionReplayStoreForTests, };