{"ast_node_type":"variable","tokens":[{"end":98,"kind":"keyword","start":0,"text":"if"}]}
        if let DefKind::AssocConst | DefKind::AssocFn | DefKind::AssocTy = self.def_kind(def_id) {
    pub fn opt_associated_item(self, def_id: DefId) -> Option<AssocItem> {
            Some(self.associated_item(def_id))