How can a user specify an envelope?

[yurkoff-mv]

📚 The doc issue

The service_envelope parameter has disappeared from the documentation:
https://pytorch.org/serve/configuration.html#other-properties

The KServe documentation states that this parameter is depricated:
https://kserve.github.io/website/0.11/modelserving/v1beta1/torchserve/#create-model-storage-with-a-model-archive-file-and-config
and that enable_envvars_config=true should now be used instead.

The question arises how can the user now set the envelope type (json/kserve/kservev2) and where is the place in the code where it is defined?
Where is this shown in the documentation?

Suggest a potential alternative/fix

No response