/* syntax version 1 */
/* postgres can not */
$script = @@ 
def f(x, y):
    """
    (Int32, Int32)
      ->Int32
    
    a simple sum UDF
    """
    return x + y
@@;

--$f = Python3::f(EvaluateType(ParseTypeHandle(Core::PythonFuncSignature(AsAtom("Python3"), $script, "f"))), $script);
$f = Python3::f($script);

select $f(1, 2);