/**
 * Discovery Service
 *
 * 提供 AI 供应商、模型等元数据的发现服务
 * 支持内置数据 + 远程 API 获取（有 Key 时）
 */
export * from './types';
import type { ProviderMetadata, ModelMetadata, DiscoveryService } from './types';
declare class BuiltinDiscoveryService implements DiscoveryService {
    getProviders(): Promise<ProviderMetadata[]>;
    getProvider(slug: string): Promise<ProviderMetadata | undefined>;
    getModels(provider?: string): Promise<ModelMetadata[]>;
    getModel(provider: string, modelId: string): Promise<ModelMetadata | undefined>;
    getDefaultModel(provider: string): Promise<ModelMetadata | undefined>;
}
export interface SmartDiscoveryOptions {
    getApiKey?: (provider: string) => Promise<string | null>;
    fetchModelsFromApi?: (provider: string, apiKey: string, baseUrl: string) => Promise<ModelMetadata[]>;
}
export declare const builtinDiscovery: BuiltinDiscoveryService;
export declare function createDiscoveryService(options?: SmartDiscoveryOptions): DiscoveryService;
export declare const getBuiltinProviders: () => ProviderMetadata[];
export declare const getBuiltinModels: (provider?: string) => ModelMetadata[];
export declare const getBuiltinProvider: (slug: string) => ProviderMetadata | undefined;
export declare const getBuiltinModel: (provider: string, modelId: string) => ModelMetadata | undefined;
export declare const getBuiltinDefaultModel: (provider: string) => ModelMetadata;
export declare const DISCOVERY_VERSION: {
    providers: string;
    models: string;
    updatedAt: string;
};