import { PrismaService } from '../../prisma/prisma.service';
export declare class NamespaceValidationService {
    private readonly prisma;
    private readonly logger;
    private readonly instanceCache;
    private readonly CACHE_TTL;
    constructor(prisma: PrismaService);
    validateInstance(instanceId: string): Promise<boolean>;
    clearCache(instanceId?: string): void;
}