I am trying to figure out how to add a source to a metric in Librato when sending the information via Segment. I am using the python library and have tried creating a property for source (below) but it doesn't seem to be working properly.
Here's what I've got:
userID = '12345'
analytics.track(userID, 'event', {
'value': 1,
'integrations.Librato.source': userID
})
I've also tried 'source' and 'Librato.source' as properties, which were referenced in Segment's documentation. Any suggestions?