Getting error module 'posixpath' has no attribute 'json'
I was trying the single liner diarization as mentioned in this comment 
https://github.com/NVIDIA/NeMo/issues/2722#issuecomment-905306973

But I'm getting this error: AttributeError: module 'posixpath' has no attribute 'json' in this line:
https://github.com/NVIDIA/NeMo/blob/b4a28b4e29a4eb03ac2e0003dfe08fb7ddedea63/nemo/collections/asr/models/clustering_diarizer.py#L395

I was wondering if it should be join instead of json? 
I'm using python 3.7.12 and nemo-toolkit 1.6.0rc0