AI900 - Can Speech-to-Text service used with endpoints instead of location?

Greetings.

I like to ask a question, hopefully not too rudimentary. I am on a learning path for AI900. Ever since I was on the path, I learnt that to deploy the Cognitive Services or any Service, you need the primary key and the endpoint. It was ingrained in my mind ever since, until I reach the module for Speech.

In Speech, for the code to work, I will need to instead key in the primary key and the location (instead of endpoint).

I am a bit confused here, as far as I understand, Speech should also be able to used with endpoint? I surmised the Python code in Github was written to use token, thus a key and location will be needed?

Am I right to say that? Or Speech requires location to be input rather than endpoint?

Thank you!

Kind regards,
Herman