17689, "lydia-duncan", "[Library Stabilization] Should there exist ** with a bigint as the exponent but the base is an integral?", "2021-05-12T18:28:46Z"
The BigInteger module provides ** (exponentiation) of a bigint base to a bigint exponent. It seems like if that's supported, it should be pretty straight-forward to support an int or uint base to a bigint exponent.
In other bigint methods where there wasn't originally an int/uint equivalent, we wrap the int/uint in a bigint and then call the normal bigint method. That should be tractable for this case as well, so far as I know.