Is there any other object parameters inside the assets? Will it be converted to dictionary too?

The model representation will be converted to dictionary not the parameters inside

And is this fine for caching?

Yes, this specific model wasn't in the list we get from backend, so the factory fetches it on its own and adds it using this add function, the asset object was reaching the add function fine, with all its information, but it wasn't being stored correctly because I was just storing the model representation (which doesn't have all the information), so when it goes in the json it lost some parameters including model params. This is what I fixed, storing the asset as a dictionary now makes sure that all the parameters are extracted properly, so then they are stored correctly in the json.