Call handlers with parameters by name using return values

Eggplant Functional
1

I want to call a handler with the parameters set by name.
If I do so inside the same script, I have no problem. If I try to call it with the folder and script name the input is seen as a property list like this: {string1:“Text to join”, string2:" with this ending."}.

Example:
Handler in the script “TestScript” in the Folder “Test”

put JoinStrings(string1:"Text to join", string2:" with this ending." by name) into joinedString
Log joinedString

To handle JoinStrings with string1, string2
	return string1 & string2
End JoinStrings

Calling the script, results in the required behavior.
Calling the function like below, results in the return of the property list

put "Test/TestScript".JoinStrings(string1:"Text to join", string2:" with this ending." by name) into joinedString

If I then put the string of Test/TestScript into a variable and run it like below it works again.

put "Test/TestScript" into foobar
Log (foobar).JoinStrings(string1:"Text to join", string2:" with this ending." by name)

How can I use my handler in this case without setting a variable first?

2

While not completely the same, i have seen similar issue using dynamically concatenated strings as opposed to defining in a variable and then using that - i mention this in another post (linked below). I assume this is an issue in the script execution that does the joining “late” to calling the function?