ficates are to be used for
        verification purposes. This method has some caveats related to the
        binary wheels that cryptography (pyOpenSSL's primary dependency) ships:

        *   macOS will only load certificates using this method if the user has
            the ``openssl@1.1`` `Homebrew <https://brew.sh>`_ formula installed
            in the default location.
        *   Windows will not work.
        *   manylinux1 cryptography wheels will work on most common Linux
            distributions in pyOpenSSL 17.1.0 and above.  pyOpenSSL detects the
            manylinux1 wheel and attempts to load roots via a fallback path.

        :return: None
        rv