Does session token refresh on expire (Adobe.PDFServicesSDK Version: 4.1.0)

I have create sample .Net project to extract PDF using Adobe.PDFServicesSDK Version: 4.1.0.
Refered https://developer.adobe.com/document-services/docs/overview/pdf-services-api/quickstarts/dotnet/ doc for POC.

Now consider below scenario where we create PDFService instance once and call adobe pdf service API at interval of 24 hrs.

Does the session token will auto refresh by Adobe.PDFServicesSDK on expire?
As session token expire time is 24 hr after generation.

In actual project we will create PDFService instance as singleton. So it will reuse the token until expire but not sure what will be case once it is expire.