Update the function parameters of the user-defined function.
>>> cos_udf = catalog.get_user_defined_function("cos")
>>> cos_udf.update_function_parameters([
... FunctionParameter(name="value", dtype=DBVarType.FLOAT)
... ])
>>> cos_udf.function_parameters
[FunctionParameter(name='value', dtype='FLOAT', default_value=None, test_value=None)]