unBlendedCost field is gone

[StevenCTimm]

Traceback (most recent call last):
File "/opt/bill-calculator/bin/AWSBillAnalysis.py", line 439, in _sumUpBillFromDateToDate
BillSummaryDict[ key ] += float(row[unBlendedCostCsvHeaderString])
KeyError: 'AmazonSimpleStorageService'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/opt/bill-calculator/bin/hcf-bill-calculator", line 135, in AWSBillAnalysis
message = alarm.EvaluateAlarmConditions(publishData = True)
File "/opt/bill-calculator/bin/AWSBillAnalysis.py", line 557, in EvaluateAlarmConditions
alarmConditionsDict = self.ExtractAlarmConditions()
File "/opt/bill-calculator/bin/AWSBillAnalysis.py", line 626, in ExtractAlarmConditions
newLastStartDateBilledDatetime, CorrectedBillSummaryOneDayBeforeDict = self.calculator.CalculateBill()
File "/opt/bill-calculator/bin/AWSBillAnalysis.py", line 82, in CalculateBill
lastStartDateBilledConsideredDatetime, BillSummaryDict = self._sumUpBillFromDateToDate( self.billCVSAggregateStr, self.lastKnownBillDate, self.sumToDate );
File "/opt/bill-calculator/bin/AWSBillAnalysis.py", line 452, in _sumUpBillFromDateToDate
BillSummaryDict[ key ] = float(row[unBlendedCostCsvHeaderString])

[StevenCTimm]

note that the above output actually came from hepcsvc01 where the bill-calculator runs standalone,
but the exception happens whether it's running in the decision engine or standalone.

can reproduce by changing the date in /etc/decisionengine/modules.conf/AccountConstants_my.py
to sometime in 2024 or later.

At first I thought this bug was happening because the UnblendedCost field was gone in the cSV file but
namratha and I looked at it and the field is there.