'Provide sample context sufficient for rendering plaintext template'

def _get_sample_plain_context(self):

    context = {'course_title': 'Bogus    Course    Title', 'course_url': '/location/of/course/url', 'email_settings_url': '/location/of/email/settings/url', 'platform_name': 'edX', 'email': 'your-email@test.com'}
    return context
