Create List , List String Syntax Clarification

Create List , List String Syntax Clarification

Hi,

Need some clarification on using List String
The developer Docs here says
https://help.creator.zoho.com/Create-List.html

list4 = List:String(input.Country + ", " + input.Name);

For me this gives a deluge error "Invalid argument. List expression is expected as argument."

Not until i insert another pair of { } of braces
can i get it to work
list4 = List:String({input.Country + ", " + input.Name});

Either there is a bug in the statement or an error in the docs,

Can someone please clarify

Regards