add rpc method

    return results

@_rpc_groups(["Projects"])

def project_stats(user: User, project_id: int) -> dict:

    """

    Get infos from given project:

    - number of descendants

    - number of descendant resources

    - number of resources

    - number of children collections

    """

    try:

        project = Project.objects.get(pk=project_id)

        _check_project_permission(user, project, PERM_COLLECTION_READ)

        _check_project_permission(user, project, PERM_RESOURCE_READ)

        root = Collection.objects.get(title=ROOT_COLLECTION_TITLE, parent_id=None)

        return {

            "descendants_count": Collection.objects.filter(

                project=project, deleted_at__isnull=True

            ).count(),

            "descendants_resources_count": Resource.objects.filter(

                project=project, deleted_at__isnull=True

            ).count(),

            "children_count": Collection.objects.filter(

                project=project, deleted_at__isnull=True, parent=root

            ).count(),

            "resources_count": Resource.objects.filter(

                project=project,

                deleted_at__isnull=True,

                collectionmembership__isnull=True,

            ).count(),

        }

    except Project.DoesNotExist:

        raise ServiceException(NO_SUCH_PROJECT)

@_rpc_groups(["Collections", "Resources"])

def collection_stats(user: User, collection_id: int) -> dict:

    """