ParquetDecimal truncates values

[dean-kaila]

I am saving decimal values which I only care about the scale up to 4 digits i.e. ParquetDecimal(9,4), and I expected that if a number if saved which naturally has a scale of 5, internally it would get rounded off to fit the desired scale. However I've noticed that the values get truncated at the stated scale which tempers with accuracy in my use case.
Could I be missing something, or is this the intended design?