import type { GatewayApiKey } from '@nylas-labs/cli-kit';
/** Nylas API-key expiry values are expressed in days, not seconds. */
export declare const DEPLOYMENT_API_KEY_LIFETIME_DAYS = 365;
export declare const TEMPORARY_API_KEY_LIFETIME_DAYS = 1;
/** Dashboard APIs may serialize epoch timestamps in seconds or milliseconds. */
export declare function apiKeyExpiresAtMs(expiresAt: number | undefined): number | null;
export declare function reusableApiKey(keys: GatewayApiKey[], trackedKeyId: string | undefined, now?: number): GatewayApiKey | null;
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