code: def _remove_person_from_group(person, group):
      
      from karaage.datastores import remove_accounts_from_group
      from karaage.datastores import remove_accounts_from_project
      from karaage.datastores import remove_accounts_from_institute
  
      a_list = person.account_set
      remove_accounts_from_group(a_list, group)
      for project in group.project_set.all():
          remove_accounts_from_project(a_list, project)
      for institute in group.institute_set.all():
          remove_accounts_from_institute(a_list, institute)
docs: Call datastores after removing a person from a group.