<?php namespace WPMailSMTP\Vendor\GuzzleHttp; use WPMailSMTP\Vendor\Psr\Http\Message\RequestInterface; use WPMailSMTP\Vendor\Psr\Http\Message\ResponseInterface; interface MessageFormatterInterface { /** * Returns a formatted message string. * * @param RequestInterface $request Request that was sent * @param ResponseInterface|null $response Response that was received * @param \Throwable|null $error Exception that was received */ public function format(\WPMailSMTP\Vendor\Psr\Http\Message\RequestInterface $request, ?\WPMailSMTP\Vendor\Psr\Http\Message\ResponseInterface $response = null, ?\Throwable $error = null) : string; }