public async Task UpdateCollectionsAsync(IOspSession session)
        {
            var ckEntities = (await CkEntities.GetAsync(session)).ToList();

            foreach (var ckEntity in ckEntities)
            {
                var suffix = ckEntity.CkId.Replace(".", "_");
                await _repository.CreateCollectionIfNotExistsAsync <RtEntity>(suffix);
            }
        }
        public async Task UpdateIndexAsync(IOspSession session)
        {
            var ckEntities = (await CkEntities.GetAsync(session)).ToList();

            foreach (var ckEntity in ckEntities)
            {
                string name = ckEntity.CkId.Replace(".", "_");

                var collection = GetRtCollection <RtEntity>(ckEntity.CkId);
                await collection.DropIndexAsync(name);

                await collection.DropIndexAsync("OspSystem");
            }

            foreach (var ckEntity in ckEntities)
            {
                foreach (var index in ckEntity.Indexes)
                {
                    if (index.IndexType == IndexTypes.None)
                    {
                        continue;
                    }

                    var collection = GetRtCollection <RtEntity>(ckEntity.CkId);

                    string newName = ckEntity.CkId.Replace(".", "_") + "_" + ObjectId.GenerateNewId();

                    switch (index.IndexType)
                    {
                    case IndexTypes.Ascending:
                        await collection.CreateAscendingIndexAsync(newName,
                                                                   index.Fields.SelectMany(x => x.AttributeNames));

                        break;

                    case IndexTypes.Text:
                        await collection.CreateTextIndexAsync(newName, index.Language, index.Fields);

                        break;

                    default:
                        throw new NotImplementedException($"Index type {index.IndexType} is not implemented.");
                    }
                }
            }
        }