import { Document } from "../document.js";
import { RemoteRetriever, RemoteRetrieverValues, RemoteRetrieverParams } from "./remote/base.js";
export interface VespaRetrieverParams extends RemoteRetrieverParams {
    /**
     * The body of the query to send to Vespa
     */
    query_body: object;
    /**
     * The name of the field the content resides in
     */
    content_field: string;
}
export declare class VespaRetriever extends RemoteRetriever {
    lc_namespace: string[];
    query_body: object;
    content_field: string;
    constructor(fields: VespaRetrieverParams);
    createJsonBody(query: string): RemoteRetrieverValues;
    processJsonResponse(json: RemoteRetrieverValues): Document[];
}