{"ast_node_type":"other","tokens":[{"end":33,"kind":"keyword","start":0,"text":"match"}]}
    match name.split_once("::") {
fn valid_crate_name(name: &str, unstable_opts: &UnstableOptions) -> bool {
        Some((a, b)) if unstable_opts.namespaced_crates => is_ascii_ident(a) && is_ascii_ident(b),