composer.json

{
  "name": "drupal/core-dependency-injection",
  "description": "Dependency Injection container optimized for Drupal's needs.",
  "keywords": ["drupal", "dependency injection"],
  "type": "library",
  "homepage": "https://www.drupal.org/project/drupal",
  "license": "GPL-2.0-or-later",
  "support": {
    "issues": "https://www.drupal.org/project/issues/drupal",
    "irc": "irc://irc.freenode.net/drupal-contribute",
    "source": "https://www.drupal.org/project/drupal/git-instructions"
  },
  "require": {
    "php": ">=7.2.3",
    "symfony/dependency-injection": "^4.4"
  },
  "suggest": {
    "symfony/expression-language": "For using expressions in service container configuration"
  },
  "autoload": {
    "psr-4": {
      "Drupal\\Component\\DependencyInjection\\": ""
    }
  }
}