Now I'm understand 
In fully correct way - it's only supported since 0.2.23, where you can specify thresholds like last() > 90 for 10 polls. However, you can get approximately the same result by giving average() > 90 for 10 polls.
Best regards,
Victor

In fully correct way - it's only supported since 0.2.23, where you can specify thresholds like last() > 90 for 10 polls. However, you can get approximately the same result by giving average() > 90 for 10 polls.
Best regards,
Victor