How to use app-in billing API's offered by playstore?

Is there a way to call app-in billing subscription using some API from playstore? Because the button offered by Kodular is not working.
Thank you

You should really tell more.
Don’t expect help with your current given informations.

When i use the block from kodular “call subscription ID”… The block do nothing…
I have config all right from google play console because with pavi’s extension the block “call subscription ID” is working fine… But this extension has problems too
Pavi’s extension does not call the event “subscription owner” and kodular extension do not call the “subscription ID”. That’s why i’m asking if there is a way using some API

Maybe @pavi2410 can help you and tell more.