code: def _get_base(group, **conn):
      
      group['_version'] = 1
  
      # Get the initial group details (only needed if we didn't grab the users):
      group.update(get_group_api(group['GroupName'], users=False, **conn)['Group'])
  
      # Cast CreateDate from a datetime to something JSON serializable.
      group['CreateDate'] = get_iso_string(group['CreateDate'])
      return group
docs: Fetch the base IAM Group.