timeout errors over time (groupped by 10 minutes) logs query.dart

union traces, exceptions
| where message contains "timeout" or outerMessage  contains "timeout" or innermostMessage contains "timeout"
| extend minute = datetime_part('minute', timestamp)
| extend timeMinute = make_datetime(
    datetime_part('year', timestamp),
    datetime_part('month', timestamp),
    datetime_part('day', timestamp),
    datetime_part('hour', timestamp),
    iif(minute between (0 .. 10), 0,
    iif(minute between (11 .. 20), 10,
    iif(minute between (21 .. 30), 20,
    iif(minute between (31 .. 40), 30,
    iif(minute between (41 .. 50), 40, 50)))))
)
| where timestamp > ago(8h)
| summarize TimeoutsCount=count() by timeMinute
| order by timeMinute asc
| render timechart