GDExtensionInstanceBindingCreateCallbackFunction typedef
GDExtensionInstanceBindingCreateCallbackFunction =
Pointer<Void> Function(Pointer<Void> p_token, Pointer<Void> p_instance)
Implementation
typedef GDExtensionInstanceBindingCreateCallbackFunction =
ffi.Pointer<ffi.Void> Function(
ffi.Pointer<ffi.Void> p_token,
ffi.Pointer<ffi.Void> p_instance,
);