code: def cc(self, cc_emails, global_substitutions=None, is_multiple=False, p=0):
          
          if isinstance(cc_emails, list):
              for email in cc_emails:
                  if isinstance(email, str):
                      email = Cc(email, None)
                  if isinstance(email, tuple):
                      email = Cc(email[0], email[1])
                  self.add_cc(email, global_substitutions, is_multiple, p)
          else:
              if isinstance(cc_emails, str):
                  cc_emails = Cc(cc_emails, None)
              if isinstance(cc_emails, tuple):
                  cc_emails = To(cc_emails[0], cc_emails[1])
              self.add_cc(cc_emails, global_substitutions, is_multiple, p)
docs: Adds Cc objects to the Personalization object
  
          :param cc_emails: An Cc or list of Cc objects
          :type cc_emails: Cc, list(Cc), tuple
          :param global_substitutions: A dict of substitutions for all recipients
          :type global_substitutions: dict
          :param is_multiple: Create a new personilization for each recipient
          :type is_multiple: bool
          :param p: p is the Personalization object or Personalization object
                    index
          :type p: Personalization, integer, optional