// typescript
import { pugEngine } from "nodemailer-pug-engine";

// javascript
const { pugEngine } = require("nodemailer-pug-engine");



const mailer = createTransport(...)

mailer.use('compile', pugEngine({
    templateDir: __dirname + '/templates',
    pretty: true
}));

mailer.sendMail({
    to: '..',
    template: 'test',   // defines the template to compile for the email
    ctx: {
        // this is available in the template
    }
});