Need to fetch value from a map variable coming from RPA Integration output variable

Hi Everyone,

I am getting a variable of type Map from Appian RPA Integration in Execute Robotic Process smart service, the values are coming like below as a single Map variable:

{

varABCIndex=26,
varSiteNameIndex=16,
varCurrentMonthTotal=64,
varProjectIdIndex=24,
varExcelModifySourceFilePath=,
varOutputDocId=164646
}

Suppose I want to fetch value of varOutputDocId from this map variable, so how I can fetch this value.

Please suggest.