How to send an ace message to several destinations, CC and CCO

Hi all,
I’m runing ironwood and trying to send an e-mail with CC and CCO.
This is the version of edx_ace
edx-ace==0.1.10

My code looks like:

def send_assignment_graded_email(self, request, module, msg):
        """
        Send email to the user notifying the assignment was graded by instructor.
        """
        user = module.student
        to_address = user.email

        msg_context = {
            'graded_assignment_url': reverse(
                'jump_to',
                kwargs={
                    'course_id': unicode(self.location.course_key),
                    'location': unicode(str(self.location))
                },
                request=request
            ),
            'platform_name': settings.PLATFORM_NAME
        }
        msg = msg.personalize(
            recipient=Recipient(user.id, to_address),
            language=request.LANGUAGE_CODE,
            user_context=msg_context,
        )

        try:
            ace.send(msg)
            log.info("Assignment Graded email has been sent to User {user_email}".format(
                user_email=to_address
            ))
         ...