How to use the sumo.email_utils function in sumo

        @email_utils.safe_translation
        def _make_mail(locale, user, watches):
            if (is_ready and
                    ReadyRevisionEvent.event_type in
                    (w.event_type for w in watches)):
                c = context_dict(revision, ready_for_l10n=True)
                # TODO: Expose all watches
                c['watch'] = watches[0]
                c['l10n_url'] = django_reverse('wiki.select_locale',
                                          args=[document.slug])

                subject = _(u'{title} has a revision ready for '
                            'localization')
                text_template = 'wiki/email/ready_for_l10n.ltxt'
                html_template = 'wiki/email/ready_for_l10n.html'

            else:

html_template='wiki/email/reviewed.html',
            context_vars=c,
            from_email=settings.TIDINGS_FROM_ADDRESS,
            to_email=user.email)

        msgs.append(mail)

    for user in [revision.creator, revision.reviewer]:
        if hasattr(user, 'profile'):
            locale = user.profile.locale
        else:
            locale = settings.WIKI_DEFAULT_LANGUAGE

        _make_mail(locale, user)

    email_utils.send_messages(msgs)

        @email_utils.safe_translation
        def _make_mail(locale):
            subject = _('Please confirm your email address')
            context = {
                'activation_url': cls._activation_url(watch),
                'domain': Site.objects.get_current().domain,
                'watch_description': cls.description_of_watch(watch)}

            mail = email_utils.make_mail(
                subject=subject,
                text_template='questions/email/activate_watch.ltxt',
                html_template='questions/email/activate_watch.html',
                context_vars=context,
                from_email=settings.TIDINGS_FROM_ADDRESS,
                to_email=email)

            return mail

            @email_utils.safe_translation
            def _make_mail(locale):
                mail = email_utils.make_mail(
                    subject=subject,
                    text_template=text_template,
                    html_template=html_template,
                    context_vars=c,
                    from_email=from_email,
                    to_email=user.email)

                return mail