import { SecureWebFetcher } from "./fetch.js";
import { DeepResearchEngine } from "./research.js";
import { type WebSearchProviderRegistry } from "./search.js";
import type { DeepResearchRequest, DeepResearchResponse, WebFetchRequest, WebFetchResponse, WebResearchConfig, WebResearchTelemetry, WebSearchProviderHealth, WebSearchProviderSelection, WebSearchRequest, WebSearchResponse } from "./types.js";
export interface WebResearchEngineOptions {
    config?: WebResearchConfig;
    registry?: WebSearchProviderRegistry;
    fetcher?: SecureWebFetcher;
}
export declare class WebResearchEngine {
    readonly config: WebResearchConfig;
    readonly telemetry: WebResearchTelemetry;
    readonly registry: WebSearchProviderRegistry;
    readonly fetcher: SecureWebFetcher;
    readonly deepResearch: DeepResearchEngine;
    constructor(options?: WebResearchEngineOptions);
    search(request: WebSearchRequest, provider?: WebSearchProviderSelection): Promise<WebSearchResponse>;
    fetch(request: WebFetchRequest): Promise<WebFetchResponse>;
    research(request: DeepResearchRequest): Promise<DeepResearchResponse>;
    diagnostics(signal?: AbortSignal): Promise<{
        configuredProvider: WebSearchProviderSelection;
        searxngEndpoint: string;
        providers: WebSearchProviderHealth[];
        fallbackProvider: "duckduckgo-lite";
        browserRenderingAvailable: boolean;
        pdfExtractionAvailable: true;
        citationRendererAvailable: true;
        numericVerifierAvailable: true;
        temporalResolverAvailable: true;
        secureFetchUsedByResearch: true;
        budgets: WebResearchConfig["research"];
        telemetry: WebResearchTelemetry;
    }>;
}
export declare function getDefaultWebResearchEngine(): WebResearchEngine;
export declare function resetDefaultWebResearchEngine(): void;
//# sourceMappingURL=engine.d.ts.map