list[str] depends:
      list of files that the extension depends on

    :keyword str language:
      extension language (i.e. "c", "c++", "objc"). Will be detected
      from the source extensions if not provided.

    :keyword bool optional:
      specifies that a build failure in the extension should not abort the
      build process, but simply not install the failing extension.

    :keyword bool py_limited_api:
      opt-in flag for the usage of :doc:`Python's limited API <python:c-api/stable>`.

    :raises setuptools.errors.PlatformError: if 'runtime_library_dirs' is
      specified on Windows. (since v63)
    c