As you can see in the following picture, vscode is inserting that pink highlighted `: String` in the for loop. There is no actual text there, as if I move the cursor, it just skips over it, so it's just visual. What is vscode telling me to do with it? there's no suggestion when I hover over it.

[![enter image description here](https://i.stack.imgur.com/GujZ8.png)](https://i.stack.imgur.com/GujZ8.png)