CM360 API Python Library Errors When Retrieving Advertisers, Sites, Placements, etc.

[pavanmanikanta31]

​Here we are getting an error in creating service line 46 when trying to pull advertisers, we are using the same creds to get reports from the same profile without any issue.
The issue is with the advertisers, sites, placements, etc. other endpoints.

code:
https://github.com/googleads/googleads-dfa-reporting-samples/blob/main/python/v4/get_advertisers.py
error:

The same issue affects other data retrieval scripts such as those for sites, placements, etc., indicating a possible common error in the API interaction or data handling process.

https://github.com/googleads/googleads-dfa-reporting-samples/tree/main/python/v4