Applescript question - using Applescript month type

Question

I have a record-type for which I need to store a Month value. I'm trying to leverage the month class/type that Apple has ( you can define the month of a date i.e., set month of fooDate to July). This record-type is going to be one of 6 possible types of another property in another object.

I have tried creating a property called month with type Month (even though its not an option, I type it in) and with the four character code mnth in the record type. The code in the script would look something like this:

set fooRecordType to {month: April}

set recProperty of fooObject to fooRecordType

When I try this, applescript cannot recognize the the recordType and expects another recordType instead.

How do I correctly use the month class, so I don't have to make my own?