Join the execution until completion. If at least one evaluation wasn't successful, return its error.
Declared in <checkqueue.h>
[[requires_capability(0x7ff3792c5c98), requires_capability(0x7ff39153f0a8), requires_capability(0x7ff382e1fc08), requires_capability(0x7ff38db576d8), requires_capability(0x7ff3921bd848)]]
std::optional<R>
Complete();The error from the first failed check, or std::nullopt if all passed.