Function try_magic_method

crates/stdlib/src/math.rs:346–359

(
        func_name: &'static PyStrInterned,
        vm: &VirtualMachine,
        value: &PyObject,
    )

    }

    fn try_magic_method(
        func_name: &'static PyStrInterned,
        vm: &VirtualMachine,
        value: &PyObject,
    ) -> PyResult {
        let method = vm.get_method_or_type_error(value.to_owned(), func_name, || {
            format!(
                "type '{}' doesn't define '{}' method",
                value.class().name(),
                func_name.as_str(),
            )
        })?;
        method.call((), vm)
    }

    #[pyfunction]
    fn trunc(x: PyObjectRef, vm: &VirtualMachine) -> PyResult {