[TypeOrm] leftjoin and pagination

        const [todos, count] = await this.repository.createQueryBuilder('todo')
                .leftJoinAndSelect('todo.subtodos', 'subtodo')
                .where('todo.user = :userId', { userId })
                .orderBy('todo.createdAt', 'DESC')
                .skip(skip)
                .take(limit)
                .getManyAndCount();