Call Transfer with Windows Client?

Hi,
I'm struggling to figure out how to do a call transfer using the Azure.Communication.Calling.WindowsClient.
The sample is JavaScript only:
https://learn.microsoft.com/en-us/azure/communication-services/how-tos/calling-sdk/transfer-calls

Any guidance is appreciated.

Start with the linked Azure Communication Services call-transfer documentation and compare its JavaScript sample with the Windows Client surface named in the issue. Done means providing accurate Windows Client guidance or a corresponding sample, with any required limitations clearly documented.

Written by the indexing model from the issue text.