await
Suspends until the Single emits its result, then returns the unwrapped success value.
If the TealiumResult represents a failure, the contained exception is thrown at the call site, propagating it through the coroutine's normal exception handling.
The underlying subscription is disposed automatically when:
The Single emits (success or failure), or
The calling coroutine is canceled.
Throws
if the TealiumResult is a failure.