parsing PeopleSegNet output in deepstream with pyds NvDsObjectMeta.

[Kotresh17]

Hi,
I was trying to run PeopleSegNet(V2) model in deep stream, I am able to run the model fine and got the bounding box details but I am not able to access the segmentation mask output.
I was trying to access with pyds NvDsObjectMeta.
obj_meta = pyds.NvDsObjectMeta.cast(l_obj.data)
but I am not able to get any output from obj_meta.mask_params and I was getting error like.

Could someone please help me, how can I access the segmentation mask output.

details:
Hardware Platofrm: Tesla T4
DeepStream Version: 6.0
TensorRT Version : 8.0.1
CUDA Version: 11.3
Model and config file : https://github.com/NVIDIA-AI-IOT/deepstream_tao_apps/blob/master/configs/peopleSegNet_tao/pgie_peopleSegNetv2_tao_config.txt

Thanks.