import type { MongoClient, Db } from "mongodb";
import type { Polygon } from "./getCandidates";
import { storageOption } from "./storageOption";
import type { storageOptions } from "../index";
export declare class Mongo extends storageOption {
    static client: MongoClient;
    static db: Db;
    constructor();
    init(options: storageOptions): Promise<MongoClient>;
    getURL(options: storageOptions): string;
    findNodesNearPoint(latitude: number, longitude: number, searchRadius: number): Promise<import("mongodb").WithId<import("bson").Document>[]>;
    findNodesInPolygon(polygon: Polygon): Promise<unknown>;
    close(): Promise<unknown>;
}