Lists
To return all the elements from a list, add "returnAll": true to a selector.
The UTAM compiler generates a method that returns an array of elements.
getListItems(): Promise<(_BaseUtamElement)[]>;
If you change the value to false in the JSON on line 12, you see the method change to return a single element.
getListItems(): Promise<(_BaseUtamElement)>;
This behavior is similar to document.querySelector and document.querySelectorAll.
Click Run Test.