Method decode

crates/vm/src/stdlib/_io.rs:2693–2709

(
            &self,
            input: PyObjectRef,
            _final: OptionalArg<bool>,
            vm: &VirtualMachine,
        )

    impl StatelessIncrementalDecoder {
        #[pymethod]
        fn decode(
            &self,
            input: PyObjectRef,
            _final: OptionalArg<bool>,
            vm: &VirtualMachine,
        ) -> PyResult {
            let mut args: Vec<PyObjectRef> = vec![input];
            if let Some(errors) = &self.errors {
                args.push(errors.to_owned().into());
            }
            let res = self.decode.call(args, vm)?;
            let tuple: PyTupleRef = res.try_into_value(vm)?;
            if tuple.len() != 2 {
                return Err(vm.new_type_error("decoder must return a tuple (object, integer)"));
            }
            Ok(tuple[0].clone())
        }

        #[pymethod]
        fn getstate(&self, vm: &VirtualMachine) -> (PyBytesRef, u64) {