def get_pubkey(self):
        """
        Get the public key of the certificate signing request.

        :return: The public key.
        :rtype: :py:class:`PKey`
        """
        pkey = PKey.__new__(PKey)
        pkey._pkey = _lib.X509_REQ_get_pubkey(self._req)
        _openssl_assert(pkey._pkey != _ffi.NULL)
        pkey._pkey = _ffi.gc(pkey._pkey, _lib.EVP_PKEY_free)
        pkey._only_public = True
        return pkey
Get the public key of the certificate signing request.

        :return: The public key.
        :rtype: :py:class:`PKey`