Join the execution until completion. If at least one evaluation wasn't successful, return its error.
Declared in <checkqueue.h>
[[requires_capability(0x7fb95d910288), requires_capability(0x7fb9852459a8), requires_capability(0x7fb96e8cc3b8), requires_capability(0x7fb95c46e608), requires_capability(0x7fb9586d75e8)]]
std::optional<R>
Complete();The error from the first failed check, or std::nullopt if all passed.