{"ast_node_type":"variable","tokens":[{"end":36,"kind":"keyword","start":0,"text":"if"}]}
        if let Some(label) = label {
    fn with_resolved_label(&mut self, label: Option<Label>, id: NodeId, f: impl FnOnce(&mut Self)) {
            if label.ident.as_str().as_bytes()[1] != b'_' {