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File Content: `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;
}

File Content: RequestHandlerInterface.php

File Content: `RequestHandlerInterface.php`