vendor/php-http/message-factory/src/RequestFactory.php

<?php
 
namespace Http\Message;
 
use Psr\Http\Message\UriInterface;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\StreamInterface;
 
interface RequestFactory
{
    public function createRequest(
        $method,
        $uri,
        array $headers = [],
        $body = null,
        $protocolVersion = '1.1'
    );
}