in src/bindgen/language_backend/cython.rs [410:420]
fn write_functions<W: Write>(&mut self, out: &mut SourceWriter<W>, b: &Bindings) {
self.write_functions_default(out, b);
if b.globals.is_empty()
&& b.constants.is_empty()
&& b.items.is_empty()
&& b.functions.is_empty()
{
out.write("pass");
}
}