How to register class as editor's tool in GDNative?

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:bust_in_silhouette: Asked By Robotex

In GDScript I just need to add tool keyword at beginning of script. How to do the same in GDNative script?

:bust_in_silhouette: Reply From: sash-rc
extern "C" void GDN_EXPORT godot_nativescript_init(void *handle)
    // ...