import '../server-only.js';
/**
 * True when `endpoint` is a syntactically valid HTTPS URL to a host that is not
 * a private/loopback/link-local IP literal or a localhost name.
 */
export declare function isPublicHttpsEndpoint(endpoint: unknown): boolean;
/**
 * Full acceptance check for a push endpoint: the baseline {@link
 * isPublicHttpsEndpoint} guard plus, when `allowedHosts` is non-empty, a
 * suffix-match allowlist (`'push.apple.com'` matches `web.push.apple.com`).
 */
export declare function isAllowedPushEndpoint(endpoint: unknown, allowedHosts?: string[]): boolean;