import type { App } from "../app/app.js";
export type MailcatcherMessage = {
    recipients: string[];
    subject: string;
    id: number;
    sender: string;
};
export default class MailcatcherAPI {
    smtp_api_url: string;
    private app;
    constructor(smtp_api_url: string, app: App);
    getMessages(): Promise<MailcatcherMessage[]>;
    getMessageById(id: number): Promise<string>;
    deleteAllInstanceEmails(): Promise<void>;
}