code: def get_pending_enrollment_message(cls, pending_users, enrolled_in):
          
          pending_emails = [pending_user.user_email for pending_user in pending_users]
          return (
              'warning',
              _(
                  "The following learners do not have an account on "
                  "{platform_name}. They have not been enrolled in "
                  "{enrolled_in}. When these learners create an account, they will "
                  "be enrolled automatically: {pending_email_list}"
              ).format(
                  platform_name=settings.PLATFORM_NAME,
                  enrolled_in=enrolled_in,
                  pending_email_list=', '.join(pending_emails),
              )
          )
docs: Create message for the users who were enrolled in a course or program.
  
          Args:
              users: An iterable of PendingEnterpriseCustomerUsers who were successfully linked with a pending enrollment
              enrolled_in (str): A string identifier for the course or program the pending users were linked to
  
          Returns:
              tuple: A 2-tuple containing a message type and message text