hehe.org/vendor/psr/http-server-handler/src/RequestHandlerInterface.php

<?php

namespace Psr\Http\Server;

use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;

/**
 * Handles a server request and produces a response.
 *
 * An HTTP request handler process an HTTP request in order to produce an
 * HTTP response.
 */
interface RequestHandlerInterface
{
    /**
     * Handles a request and produces a response.
     *
     * May call other collaborating code to generate the response.
     */
    public function handle(ServerRequestInterface $request): ResponseInterface;
}