Attribute Error in speech to text riva api call

Please provide the following information when requesting support.

Hardware - GPU None
Hardware - CPU Intel i5
Operating System- Windows 10
Riva Version …nvidia-riva-client 2.16.0
TLT Version (if relevant)
How to reproduce the issue ? (This is for errors. Please share the command and the detailed log here)

I am trying to make API calls from my local windows 10 system by following instructions in the below page

Running below command in cmd gives the following error

python python-clients/scripts/asr/transcribe_file.py --server grpc.nvcf.nvidia.com:443 --use-ssl --metadata function-id “1598d209-5e27-4d3c-8079-4751568b1081” --metadata “authorization” “Bearer api key” --language-code en-US --input-file python-clients\data\examples\en-US_sample.wav

File “C:\Users\dfk2\nvidia_trial\nvidia12\python-clients\scripts\asr\transcribe_file.py”, line 139, in
main()
File “C:\Users\ dfk2\nvidia_trial\nvidia12\python-clients\scripts\asr\transcribe_file.py”, line 94, in main
model=args.model_name,
^^^^^^^^^^^^^^^
AttributeError: ‘Namespace’ object has no attribute ‘model_name’