Is it possible to fetch a CDT field by numerical index?

Hi all,

I want to get fields in a CDT based on their numerical index, i.e. if I have a CDT like:

{'type!{urn:com:appian:types:TEST}TEST_Employee'('firstName': "Frank", 'secondName': "Smith", 'age': 29)}

To get the first field, is there a way to index it by number? Something like index(local!testCdt, 1, null) would return "Frank". 

Thanks for your help!

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