{"ast_node_type":"variable","tokens":[{"end":81,"kind":"keyword","start":0,"text":"}"}]}
        } else if let Some(trait_) = ctx.famous_defs().core_iter_IntoIterator() {
            postfix_snippet("not", "!expr", &format!("!{receiver_text}")).add_to(acc, ctx.db);
            if receiver_ty.impls_trait(ctx.db, trait_, &[]) {