How do you create a simple UDF in DuckDB that operates on a pyarrow object?

For an MRE, this is an attempt to re-implement a sqrt function via pyarrow. DuckDB merely gives the cryptic error listed below.

import pyarrow as pa
import duckdb

def test(x):
    return x.compute.sqrt()

duckdb.create_function(
    'test',
    test,
    type = 'arrow',
    parameters = [ int ],
    return_type = float,
)

N = 1000
duckdb.sql(f"""

    create table t (a int);
    insert into t (a) select * from generate_series(1, {N});
    alter table t add column b float;
    update table t set b = test(a);

""")

Error

Traceback (most recent call last):
  File "/Users/w/Codin/duckdb_rust_udf/test.py", line 8, in <module>
    duckdb.create_function(
TypeError: create_function(): incompatible function arguments. The following argument types are supported:
    1. (name: str, function: function, return_type: object = None, parameters: duckdb.duckdb.typing.DuckDBPyType = None, *, type: duckdb.duckdb.functional.PythonUDFType = <PythonUDFType.NATIVE: 0>, null_handling: duckdb.duckdb.functional.FunctionNullHandling = 0, exception_handling: duckdb.duckdb.PythonExceptionHandling = 0, side_effects: bool = False, connection: duckdb.DuckDBPyConnection = None) -> duckdb.DuckDBPyConnection

Invoked with: 'test', <function test at 0x100237d90>; kwargs: type='arrow', parameters=[<class 'int'>], return_type=<class 'int'>