AppleScript Bug with Myriad Tables Library: ‘Types’ Replaced with ‘Type’

I downloaded the Myriad Tables Lib v1.0.8 AppleScript script library from here.

Run the following code, and you will notice that the code will run without error:

-- use script "Myriad Tables Lib" version "1.0.8"
use AppleScript version "2.4"
use scripting additions
use framework "Foundation"
use framework "AppKit"

on fetchStorableClipboard()
    set aMutableArray to current application's NSMutableArray's array() -- used to store contents
    -- get the pasteboard and then its pasteboard items
    set thePasteboard to current application's NSPasteboard's generalPasteboard()
    -- loop through pasteboard items
    repeat with anItem in thePasteboard's pasteboardItems()
        -- make a new pasteboard item to store existing item's stuff
        set newPBItem to current application's NSPasteboardItem's alloc()'s init()
        -- get the types of data stored on the pasteboard item
        set theTypes to anItem's types()
        -- for each type, get the corresponding data and store it all in the new pasteboard item
        repeat with aType in theTypes
            set theData to (anItem's dataForType:aType)'s mutableCopy()
            if theData is not missing value then
                (newPBItem's setData:theData forType:aType)
            end if
        end repeat
        -- add new pasteboard item to array
        (aMutableArray's addObject:newPBItem)
    end repeat
    return aMutableArray
end fetchStorableClipboard

Now, un-comment the very first line of this code:

use script "Myriad Tables Lib" version "1.0.8"

Once you compile your code, the following line:

set theTypes to anItem's types()

will automatically change to:

set theTypes to anItem's type {}

The issue is that types is changed to type. The effect is that this code no longer runs.

Does anyone know a workaround, or how to prevent this from occurring?

_{OS X El Capitan, version 10.11.6.}