Function rustc_errors::fallback_fluent_bundle

pub fn fallback_fluent_bundle(
    resources: Vec<&'static str, Global>,
    with_directionality_markers: bool
) -> Rc<LazyCell<FluentBundle<FluentResource, IntlLangMemoizer>, impl FnOnce() -> FluentBundle<FluentResource, IntlLangMemoizer>>>

Return the default FluentBundle with standard “en-US” diagnostic messages.