MatchData missing renamed mapping for gameDuration -> duration

[PeteyPii]

Calling to_dict() on a Match object results in a dictionary with a redundant key-value pair for game duration.

[jjmaldonis]

What is the key for the redundant value? One of the keys should be gameDuration or something similar, what's the other key?

[PeteyPii]

I believe it is simply "duration"