conformer export problems

[sali1997s]

Describe the bug
Trying to export conformer to TorchScript, using model.export('conformer.pt') and /scripts/export.py. Getting error:
RuntimeError: Type 'Tuple[Tensor, Tensor, NoneType, NoneType]' cannot be traced. Only Tensors and (possibly nested) Lists, Dicts, and Tuples of Tensors can be traced

This is true for conformer trained on the Nemo version 1.12.
But everything is ok with exporting old version of conformer (trained on Nemo 1.10) and with that Nemo version installed.

[titu1994]

Is this with main branch ?

[titu1994]

Please provide the full stack trace

[sali1997s]

checked main branch, both exporting methods work fine!

so JFYI full trace

[titu1994]

Good that main works, hopefully we'll release a new version soon.