{"ast_node_type":"variable","tokens":[{"end":86,"kind":"keyword","start":0,"text":"let"}]}
            let InlayHintLabelPart { text, tooltip, .. } = label.parts.pop().unwrap();
        [InlayHintLabelPart { linked_location: None, .. }] => {
            let tooltip = tooltip.and_then(|it| match it {