declare module "nodemailer" {
  export type TransportOptions = Record<string, any>;
  export interface Transporter {
    sendMail(options: Record<string, any>): Promise<any>;
  }
  export function createTransport(options: TransportOptions): Transporter;
  const nodemailer: { createTransport: typeof createTransport };
  export default nodemailer;
}

declare module "nodemailer/lib/smtp-transport" {
  export interface Options extends Record<string, any> {}
  const SMTPTransport: any;
  export default SMTPTransport;
}