There's some obvious things that are the types that can be set for the field types and then the data exchange conversion types, pools, integers, floats, strings and so on. Then we get into things that don't exist within all the reasons and obvious type four in pidantic in Python. There's a kind of subtle point here that like often these types are used to enforce more validation so what's returned is an existing Python type. So name email will return you allow you to split out names and email addresses and more complex thing right.