import { Db, ObjectID } from "mongodb";
import EmailTemplate from "./email-template";
/** An email template backed by a template record in the database. */
export default class DatabaseTemplate extends EmailTemplate {
    private readonly templateId;
    private readonly db;
    /** The cached template record */
    private readonly templateRecord;
    /** Construct given the database and id. */
    constructor(templateId: ObjectID, db: Db);
    /** Loads the template from the database. */
    protected loadTemplate(): Promise<string>;
    /** Loads the text template from the database */
    protected loadTextTemplate(): Promise<string>;
}