I see here again `@Items[key]` but when I check code it looks really stupid. In fact you can just change loop
from 
```
Builtins.foreach(
         Convert.convert(
           Map.Keys(@Items),
           :from => "list",
           :to   => "list <integer>"
         )
       ) do |key|
```

to

```
@Items.each_pair do |key, value|
```
and use `value` later