Thread-safe lazy var

[Nickolas_Pohilets (Nickolas Pokhylets)]

I see that SE-0030 was superseded by SE-0258.

Is there a property wrapper that actually implements thread-safe lazy variables in the stdlib? In other frameworks?

[bbrk24]

Is the keyword lazy not thread-safe?

[Nickolas_Pohilets (Nickolas Pokhylets)]

No