Hi @ScottH ,
It took me about 2 hours to make it right, but here it is. You need to provide valid date.

And you can ask, from where that date is coming from? It's coming from consumer listing:
listings = w.consumer_listings.get(id= 'e913bea3-9a37-446c-a667-73724e7ef73e')
print(listings)
This should be much better documented. I'll raise an github issue and notify team about this.

As a bonus, I think I've found bug within ConsumerListings search function. So it seems python sdk requires a bit work to make it usable for users 😄