v3.2 Plugins - GDNative c++ example possibly wrong SConstruct file

When in the section of "Compiling the plugin" the "hardcoded SConstruct file" given in the docs don't work used with the given scons command. I've just setup the module as described in the docs. I have successfully created the new api.json based on my installed Godot version (3.2).

Platform: MacOS 10.15.3
Target platform = "osx"

Errors (partial, a long list of errors shows up):
`godot-cpp/include/core/Basis.hpp:294:25: error: no member named 'elements' in
'godot::Basis'
elements[0] = p_basis.elements[0];
~~~~~~~ ^
godot-cpp/include/core/Basis.hpp:295:3: error: use of undeclared identifier
'elements'
elements[1] = p_basis.elements[1];
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
5 warnings and 20 errors generated.
scons: *** [src/firebase.os] Error 1
scons: building terminated because of errors.`

I tried using the SConstruct file from the [gdnative_cpp_example repo](https://github.com/BastiaanOlij/gdnative_cpp_example) given in the docs and it works correctly.