<?php namespace WPMailSMTP\Vendor\Psr\Http\Client; use WPMailSMTP\Vendor\Psr\Http\Message\RequestInterface; use WPMailSMTP\Vendor\Psr\Http\Message\ResponseInterface; interface ClientInterface { /** * Sends a PSR-7 request and returns a PSR-7 response. * * @param RequestInterface $request * * @return ResponseInterface * * @throws \Psr\Http\Client\ClientExceptionInterface If an error happens while processing the request. */ public function sendRequest(\WPMailSMTP\Vendor\Psr\Http\Message\RequestInterface $request) : \WPMailSMTP\Vendor\Psr\Http\Message\ResponseInterface; }