code: def _add_person_to_group(person, group):
      
      from karaage.datastores import add_accounts_to_group
      from karaage.datastores import add_accounts_to_project
      from karaage.datastores import add_accounts_to_institute
  
      a_list = person.account_set
      add_accounts_to_group(a_list, group)
      for project in group.project_set.all():
          add_accounts_to_project(a_list, project)
      for institute in group.institute_set.all():
          add_accounts_to_institute(a_list, institute)
docs: Call datastores after adding a person to a group.