The following files include code from opensource projects
(either as direct copies or modified versions):

- `setuptools.schema.json`, `distutils.schema.json`:
    - project: `validate-pyproject` - licensed under MPL-2.0
      (https://github.com/abravalheri/validate-pyproject):

      This Source Code Form is subject to the terms of the Mozilla Public
      License, v. 2.0. If a copy of the MPL was not distributed with this file,
      You can obtain one at https://mozilla.org/MPL/2.0/.