kapacitor about dynamic threshold

var Threshold = 10

stream.from()....
.alert()
.crit(lambda: "value" > Threshold)

my question is the threshold is variable ,not parameter ,for example threshold maybe 10 or 9 or 8 .
how to do it? Can you help me?

The issue names only a stream.from pipeline and alert().crit(lambda: ...) expression, with no file, test, or implementation entry point. Start by determining whether the alert expression supports a variable threshold, then verify behavior for threshold values 10, 9, and 8; done means the supported approach is documented or implemented and tested.

Written by the indexing model from the issue text.