def METHOD_NAME(self):
    """
    Verify _check_keys_exist_for_provider does not error when at least
    1 key in config is a valid key
    """
    secret_key = [None, 'abc1234', None]
    provider_id = 'asu'
    serializer = serializers.CreditProviderCallbackSerializer()
    result = serializer._check_keys_exist_for_provider(secret_key, provider_id)  # lint-amnesty, pylint: disable=assignment-from-no-return, protected-access
    # No return value, so we expect successful execution to return None
    assert result is None