old_contents: {
      "name": "nfe spec",
      "version": "13.0.1.0.0",
      "author": "Akretion, Odoo Community Association (OCA)",
      "license": "LGPL-3",
      "category": "Accounting",
      "summary": "nfe spec",
      "depends": ["base"],
      "installable": True,
      "application": False,
      "development_status": "Production/Stable",
      "maintainers": ["rvalyi"],
      "website": "https://github.com/OCA/l10n-brazil",
  }
  
new_contents: {
      "name": "nfe spec",
      "version": "13.0.1.0.0",
      "author": "Akretion, Odoo Community Association (OCA)",
      "license": "LGPL-3",
      "category": "Accounting",
      "summary": "nfe spec",
      "depends": ["base"],
      "external_dependencies": {
          "python": [
              "nfelib",  # (only for tests)
          ],
      },
      "installable": True,
      "application": False,
      "development_status": "Production/Stable",
      "maintainers": ["rvalyi"],
      "website": "https://github.com/OCA/l10n-brazil",
  }
  
subject: add nfelib dep to make tests pass