def _apply_config(**kwargs):
        '''Adds the current_app's pystmark configuration to a dict. If a
        configuration value has been specified in \*\*kwargs, it will not
        be overriden by the app's configuration.

        :param kwargs: Keyword arguments to be passed to the pystmark Simple
            API
        '''
        kwargs = dict(**kwargs)
        kwargs.setdefault('api_key', current_app.config['PYSTMARK_API_KEY'])
        kwargs.setdefault('secure', current_app.config.get('PYSTMARK_HTTPS',
                                                           True))
        kwargs.setdefault('test', current_app.config.get('PYSTMARK_TEST_API',
                                                         False))
        return kwargs
Adds the current_app's pystmark configuration to a dict. If a
        configuration value has been specified in \*\*kwargs, it will not
        be overriden by the app's configuration.

        :param kwargs: Keyword arguments to be passed to the pystmark Simple
            API