Can a VBScript function return a dictionary?

I have a dictionary of form data that I want to modify using a function.

function queryCleanForm(myDictForm)

    dim arrayKeys
    arrayKeys = myDictForm.keys

    for i=0 to myDictForm.count-1
        myDictForm(arrayKeys(i)) = replace(myDictForm(arrayKeys(i)), "'", "''")
        response.write myDictForm(arrayKeys(i))
    next

    queryCleanForm = myDictForm
end function

The problem is the line queryCleanForm = myDictForm errors as

Wrong number of arguments or invalid property assignment 

Is there a way to do this in VBScript?