Is there a keychain in ios threadsafe?

Question

I would like to add some elements to the keychain using "secitemadd", but first I need to know if this is thread safe.

I read the documentation from apple, but I can not find anywhere, stating if its thread safe.

Answer 1

In another document, Apple says it is thread safe.

Concurrency Considerations
In iOS, all of the features of this API are thread safe and reentrant.

see Certificate, Key, and Trust Services Reference

Answer 2

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