/**
 * Email Provider Default API Route Handler for Next.js
 *
 * Sets a specific email provider as the default. The previous default
 * provider is unset atomically in a transaction.
 * Re-export in your Next.js application at /api/email-providers/[id]/default.
 *
 * @example
 * ```typescript
 * // In your Next.js app: app/api/email-providers/[id]/default/route.ts
 * export { PATCH } from 'nextly/api/email-providers-default';
 * ```
 *
 * @module api/email-providers-default
 */
interface RouteContext {
    params: Promise<{
        id: string;
    }>;
}
/**
 * PATCH handler for setting an email provider as the default.
 *
 * Requires authentication. Unsets the previous default provider and sets
 * the specified provider as default in a single transaction.
 *
 * No request body required; the provider ID is in the URL path.
 *
 * Response Codes:
 * - 200 OK: Provider set as default successfully
 * - 401 Unauthorized: Authentication required
 * - 404 Not Found: Provider with ID does not exist
 * - 500 Internal Server Error: Operation failed
 *
 * Response: `{ "data": EmailProvider }`; updated provider with `isDefault:
 * true` and masked configuration.
 */
declare const PATCH: (request: Request, context: RouteContext) => Promise<Response>;

export { PATCH };