Enumerate keys in an AppleScript dictionary/record using the Foundation framework

Enumerate keys using Foundation.applescript

-- Based on an answer in StackOverflow
-- Q: https://stackoverflow.com/questions/18062494/how-to-enumerate-the-keys-and-values-of-a-record-in-applescript
-- A: https://stackoverflow.com/a/29545930/919692

use framework "Foundation"
set testRecord to {b:"bbb", c:"ccc", |0|:"zero", a:"aaa", |null|:"null"}

set objCDictionary to current application's NSDictionary's dictionaryWithDictionary:testRecord
set allKeys to objCDictionary's allKeys()

repeat with theKey in allKeys
	log theKey as text
	--log (objCDictionary's valueForKey:theKey) as text
end repeat