Although it’s very appealing to use a language model for object creation, I would really try to avoid doing it. Unless the model is completely controlled by you, and each item can be vetted reviewed. If it’s a part of a pipeline, or immediately deposited to a server, it could completely break your system.
The reason I say this is because it inherently can make adjustments, and depending on how long your object is, it can start to make mistakes. This isn’t even considering what happens when the expected data is different. This is all assuming you are the sole user. Depending on how automated your pipeline is, it can completely ruin the process and possibly corrupt your database
I was doing this for a while, with a very small error rate (1% - 5%). However I have found better success in token classification and using logic to create my object.