import { Collection } from "./Collection";
import { Document } from "./Document";
export declare class Connection {
    private client;
    private readonly database;
    protected constructor(url: Promise<string>, database?: Promise<string>);
    get<T extends Document, Shard extends keyof T & string>(name: string, shard: Shard, idLength?: 4 | 8 | 12 | 16): Promise<Collection<T, Shard> | undefined>;
    close(): Promise<void>;
    static open(url: string, database?: string): Connection;
}