public async Task TranscriptsEmptyTest()
        {
            if (StorageEmulatorHelper.CheckEmulator())
            {
                var unusedChannelId = Guid.NewGuid().ToString();
                var transcripts     = await TranscriptStore.ListTranscriptsAsync(unusedChannelId);

                Assert.Empty(transcripts.Items);
            }
        }
        public async Task TranscriptListTestWithoutContinuationToken()
        {
            if (StorageEmulatorHelper.CheckEmulator())
            {
                var a = CreateActivity(0, 0, ConversationIds);
                await TranscriptStore.LogActivityAsync(a);

                var result = await TranscriptStore.ListTranscriptsAsync(a.ChannelId);

                Assert.Single(result.Items);
            }
        }