game parameter of 'marketplace' does not return data

[hyperidler]

In testing the call for a game to obtain marketplace data it seems that marketplace data is not returned (i.e. previous sales of the game that includes date, amount sold for, trade condition). I am hoping to get historical selling values for specific games to calculate the value of my collection. This worked in the older API call.

x.game(game_id=1234,marketplace=True)