installed.json

{
    "packages": [
        {
            "name": "drupal/test-distribution",
            "version": "1.0.0",
            "require": {
                "drupal/core-recommended": "*"
            }
        },
        {
            "name": "drupal/core-recommended",
            "version": "9.8.0",
            "require": {
                "drupal/core": "9.8.0"
            }
        },
        {
            "name": "drupal/core",
            "version": "9.8.0"
        },
        {
            "name": "drupal/core-dev",
            "version": "9.8.0"
        }
    ],
    "dev": true,
    "dev-package-names": [
        "drupal/core-dev"
    ]
}