/**
 * Decorator to mark a route as public (no authentication required).
 *
 * @example
 * ```typescript
 * @Controller('health')
 * export class HealthController {
 *   @Get()
 *   @Public()
 *   check() {
 *     return { status: 'ok' };
 *   }
 * }
 * ```
 */
export declare const Public: () => import("@nestjs/common").CustomDecorator<string>;
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