import { Document } from "@langchain/core/documents";
import { CallbackManagerForRetrieverRun } from "@langchain/core/callbacks/manager";
import { BaseRetriever, type BaseRetrieverInput } from "@langchain/core/retrievers";
/**
 * Options for the TavilySearchAPIRetriever class, which includes a BaseLanguageModel
 * instance, a VectorStore instance, and an optional promptTemplate which
 * can either be a BasePromptTemplate instance or a PromptKey.
 */
export type TavilySearchAPIRetrieverFields = BaseRetrieverInput & {
    k?: number;
    includeGeneratedAnswer?: boolean;
    includeRawContent?: boolean;
    includeImages?: boolean;
    searchDepth?: "basic" | "advanced";
    includeDomains?: string[];
    excludeDomains?: string[];
    kwargs?: Record<string, unknown>;
    apiKey?: string;
};
/**
 * A class for retrieving documents related to a given search term
 * using the Tavily Search API.
 */
export declare class TavilySearchAPIRetriever extends BaseRetriever {
    static lc_name(): string;
    get lc_namespace(): string[];
    k: number;
    includeGeneratedAnswer: boolean;
    includeRawContent: boolean;
    includeImages: boolean;
    searchDepth: string;
    includeDomains?: string[];
    excludeDomains?: string[];
    kwargs: Record<string, unknown>;
    apiKey?: string;
    constructor(fields?: TavilySearchAPIRetrieverFields);
    _getRelevantDocuments(query: string, _runManager?: CallbackManagerForRetrieverRun): Promise<Document[]>;
}