err := iamOS.deleteIAMConfig(ctx, getUserIdentityPath(name, userType))
	if err == errConfigNotFound {
		err = errNoSuchUser
	}
	return err
}

func (iamOS *IAMObjectStore) deleteGroupInfo(ctx context.Context, name string) error {
	err := iamOS.deleteIAMConfig(ctx, getGroupInfoPath(name))
	if err == errConfigNotFound {
		err = errNoSuchGroup
	}
	return err
}

	deleteMappedPolicy(ctx context.Context, name string, userType IAMUserType, isGroup bool) error
	deleteUserIdentity(ctx context.Context, name string, userType IAMUserType) error
	deleteGroupInfo(ctx context.Context, name string) error
}

// iamStorageWatcher is implemented by `IAMStorageAPI` implementers that
// additionally support watching storage for changes.
type iamStorageWatcher interface {