How to change a Finder window's "Sort By" option in workflow?

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I want to create a workflow like this: changing the "Sort By" option of the frontmost window of Finder using different arguments.

However, I haven't found any useful tasks in the Finder section of the "Automation task" in Alfred. Is using AppleScript GUI Scripting the only way to implement this?

 

[zeitlings]

Finder's scripting definitions seem to allow for sorting (so no GUI scripting, but AppleScript nonetheless).

 

Quote

sort v : Return the specified object(s) in a sorted list

sort specifier : a list of finder objects to sort

by property : the property to sort the items by (name, index, date, etc.)

→ specifier : the sorted items in their new order

 

You can see the documentation via Script Editor (App), File > Open Dictionary (⇧⌘O) > Finder (from the list). 

By the by, Vitor has a neat workflow to open AppleScript Dictionaries.