Method missing_opt

crates/vm/src/builtins/dict.rs:624–632

(
        &self,
        key: &K,
        vm: &VirtualMachine,
    )

    }

    fn missing_opt<K: DictKey + ?Sized>(
        &self,
        key: &K,
        vm: &VirtualMachine,
    ) -> PyResult<Option<PyObjectRef>> {
        vm.get_method(self.to_owned().into(), identifier!(vm, __missing__))
            .map(|methods| methods?.call((key.to_pyobject(vm),), vm))
            .transpose()
    }

    #[inline]
    fn inner_getitem<K: DictKey + ?Sized>(