#[no_mangle]
extern "C" fn ICU4XLocaleFallbackerWithConfig_fallback_for_locale<'a: 'b, 'b: 'a, 'temp>(
    this: &'b ICU4XLocaleFallbackerWithConfig<'a>,
    locale: &'temp ICU4XLocale,
) -> Box<ICU4XLocaleFallbackIterator<'a>>