{"ast_node_type":"other","tokens":[{"end":23,"kind":"keyword","start":0,"text":"#[allow(dead_code)]"}]}
    #[allow(dead_code)]
    ///    `Binder(TraitPredicate(<predicate>))` into just `<predicate>`.
    pub fn dump_graphviz<P: AsRef<Path>>(&self, dir: P, description: &str) {