import mongoose from "mongoose";
import { Types, SchemaDefinition, Model } from "mongoose";
/**
 *
 * @param {string} uri MongoDBとの接続で使用します。
 * @example mongo.connect(`mongodb+srv://username:password@hoge.rhaqe.mongodb.net/myFirstDatabase?retryWrites=true&w=majority`)
 */
declare function connect(uri: string): Promise<void>;
interface schemaFields {
    key: string;
    value: string;
}
declare const schemaFields: SchemaDefinition<schemaFields>;
interface schemaProperties extends schemaFields {
}
interface tempModel extends Model<schemaProperties> {
}
declare class Database {
    name: string;
    model: tempModel;
    /**
     *
     * @param {string} name MongoDBのモデルの名前。
     */
    constructor(name: string);
    dget(key: string): Promise<(mongoose.Document<any, any, schemaProperties> & schemaProperties & {
        _id: Types.ObjectId;
    }) | null>;
    get(key: string): Promise<any>;
    set(key: string, value: unknown): Promise<null>;
    has(key: string): Promise<boolean>;
    delete(key: string): Promise<null | undefined>;
    clear(): Promise<void>;
    /**
     *
     * @returns {Promise<string[]>} キーの配列が返ってきます。
     */
    keys(): Promise<string[]>;
    /**
     *
     * @returns {Promise<any[]>} 値の配列が返ってきます。
     */
    values(): Promise<any[]>;
    entries(): Promise<any[][]>;
}
export { connect, Database };