Cannot find HandlesResourceDisposal attribute in JetBrains.Annotation in Unity

Despite the fact that this attribute [HandlesResourceDisposal] is mentioned directly in the editor settings, it simply does not exist in any version of the UPM package for Unity. Literally, it's just missing for no reason, while [MustDisposeResource] exists. However, in the NuGet package installed in our Godot project, this attribute exists perfectly well, so at least it's not my imagination.

Some workarounds for Unity without using NuGet?

Thanks in advance.