{"ast_node_type":"variable","tokens":[{"end":48,"kind":"keyword","start":0,"text":"let"}]}
        let (target, generics) = match &i.kind {
    fn visit_assoc_item(&mut self, i: &'ast ast::AssocItem, ctxt: visit::AssocCtxt) {
            ast::AssocItemKind::Fn(..) | ast::AssocItemKind::Delegation(..) => {