/// This is an experimental API.
////// The docbox will indicate the function is experimental. It will also appear semi-transparent on
/// module lists.
#[doc_item::docbox(
content ="<span class='emoji'>🔬</span> This is an experimental API.",
class ="unstable")]#[doc_item::short_docbox(content ="Experimental", class ="unstable")]#[doc_item::semi_transparent]pubfnfoo(){}