Fipamo/brain/utility/Mailer.inc.php

<?php
use Slim\Views\Twig;

class Mailer
{
  public static function sendMail($request, $body, $response)
  {
    $view = Twig::fromRequest($request);

    $render = $view->render($response, "dash/email.twig", [
      "title" => "EMAIL TESTER",
      "header" => "Snarky Descriptor",
      "content" => $body["content"],
    ]);

    $email = $render->getBody()->getContents();
    echo $email;
  }
}