I didn't know that tj_set() can add new values.
I found out about this here.
Without that it was difficult to work with the extension.
Please add this info to the documentation for other people ...
Great extension!
tj_set is equivalent to ds_map_set, adding a new key-value pair or replacing an existing one. I'll see about updating the docs to be clearer.
Thanks! Your extensions are huge time savers :)