import { JSONObject } from "../../types";
import { InstrumentablePromise } from "../InstrumentablePromise";
/**
 * @internal
 */
export type DocumentsBuffer = {
    documents: Array<{
        _id: string;
        body: JSONObject;
    }>;
    promise: InstrumentablePromise;
    options: JSONObject;
};
/**
 * Map of index and collections with documents, options and associated promise
 *
 * Map<index, Map<collection, DocumentsBuffer>>
 *
 * @internal
 */
export type IndexBuffer = Map<string, Map<string, DocumentsBuffer>>;
/**
 * @internal
 */
export declare class BatchBuffer {
    indexes: IndexBuffer;
    /**
     * Add a document to the buffer of a specific collection
     *
     * @param index Index name
     * @param collection Collection name
     * @param body Document content
     * @param _id Document ID
     * @param options Option object passed to the m* action
     *
     * @returns An object containing the result index in the array of results and a promise resolving to the array of results
     */
    add(index: string, collection: string, body: JSONObject, _id?: string, options?: JSONObject): {
        idx: number;
        promise: InstrumentablePromise;
    };
}