问我想使用腾讯云短信SDK，Composer 安装后，怎么没有vendor 目录？

[root@VM_0_17_centos ~]# composer require tencentcloud/tencentcloud-sdk-php
Using version ^3.0 for tencentcloud/tencentcloud-sdk-php
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Nothing to install or update
Generating autoload files
4 packages you are using are looking for funding.
Use the `composer fund` command to find out more!
[root@VM_0_17_centos ~]# composer fund
The following packages were found in your dependencies which publish funding information:

guzzlehttp
  guzzle
    https://github.com/sponsors/GrahamCampbell
    https://github.com/sponsors/Nyholm
    https://github.com/sponsors/alexeyshockov
    https://github.com/sponsors/gmponos
    https://github.com/sponsors/sagikazarmark

symfony
  polyfill-intl-idn, polyfill-intl-normalizer, polyfill-php70, polyfill-php72
    https://symfony.com/sponso
    https://github.com/sponsors/fabpot
    https://tidelift.com/funding/github/packagist/symfony/symfony

Please consider following these links and sponsoring the work of package authors!
Thank you!