How can we know which fields are available for returning time stamps using get_history?

I am trying to receive time stamps (more granular than daily) using get_history. I know there are different intervals that I can select, and I can return time stamps with certain items. I am curious if there is a way to identify which fields can be retrieved for time stamps using get_history.

I understand get_data function will only allow daily time stamps and the pricing_stream function can allow more granular time stamps.

Thank you in advance!

Answers