{"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":".unwrap_or_else(|_|"}]}
                        .unwrap_or_else(|_| "_".to_owned());
                        .display_source_code(ctx.db(), module.into(), true)
                    Some(make::param(node.pat()?, make::ty(&ty)))