import { MongoClient, Db, Collection as MongoCollection } from "mongodb";
import type Collection from "../chip-types/collection.js";
import type { QueryStage } from "./query.js";
import Datastore from "./datastore-abstract.js";
export type OutputOptions = Partial<{
    skip: number;
    amount: number;
    sort: {
        [field_name: string]: -1 | 1;
    };
}>;
export default class MongoDatastore extends Datastore {
    client: MongoClient;
    db: Db;
    start(): Promise<void>;
    post_start(): Promise<void>;
    create_index(collection: Collection): Promise<void>;
    find(collection_name: string, query: Record<string, any>, options?: Parameters<MongoCollection["find"]>[1], output_options?: OutputOptions): Promise<Record<string, unknown>[]>;
    aggregate(collection_name: string, pipeline: QueryStage[], _?: {}, output_options?: OutputOptions): Promise<Record<string, any>[]>;
    insert(collection_name: string, to_insert: Record<string, any>, options?: Parameters<MongoCollection["insertOne"]>[1]): Promise<import("mongodb").InsertOneResult<import("bson").Document>>;
    update(collection_name: string, query: any, new_value: any): Promise<import("mongodb").UpdateResult<import("bson").Document>>;
    remove(collection_name: string, query: any, just_one: boolean): Promise<import("mongodb").DeleteResult>;
    createIndex(collection_name: string, index: any, options?: Parameters<MongoCollection["createIndex"]>[1]): Promise<string>;
    stop(): Promise<void>;
}