composer/tests/Composer/Test/Fixtures/functional/installed-versions/composer.json

{
    "name": "root/pkg",
    "version": "1.2.3",
    "require": {
        "plugin/a": "*",
        "plugin/b": "*",
        "symfony/process": "*",
        "symfony/filesystem": "5.2.4"
    },
    "repositories": [
        {"type": "path", "url": "plugin-*"},
        {"type": "path", "url": "symfony-*"}
    ],
    "scripts": {
        "pre-update-cmd": "Hooks::preUpdate",
        "post-update-cmd": "Hooks::postUpdate"
    },
    "autoload": {
        "classmap": ["Hooks.php"]
    },
    "config": {
        "allow-plugins": true
    }
}