kusto query - i want exclude 2nd and 4th Saturday along with Sunday on chart

Question

i want exclude 2nd and 4th Saturday along with Sunday on chart.

i am trying this code but its not working it gives an error -

Relop semantic error: SEM0025: One of the values provided to the 'in' operator does not match the left side expression type 'timespan', consider using explicit cast

| extend Eventdate = strcat(datetime_part("day",timestamp))
| extend day = dayofweek(timestamp)
| extend day_strg = tostring(Eventdate)
| extend Week_Num = case(
   day_strg in (range(1, 7, 1)), "1",
   day_strg in (range(8, 14, 1)), "2",
   day_strg in (range(15, 21, 1)), "3",
   day_strg in (range(22, 31, 1)), "4",
   "0")
| extend weekend = case(Week_Num in (2, 4) and day in (5, 6), "weekend","working day") 
| project Eventdate, timestamp, day, day_strg, Week_Num, weekend