:param cc: Email addresses for the 'Cc' API field.
        :type cc: :keyword:`list` or `str`

def cc(self, cc):
        '''
        :param cc: Email addresses for the 'Cc' API field.
        :type cc: :keyword:`list` or `str`
        '''
        if isinstance(cc, basestring):
            cc = cc.split(',')
        self._cc = cc