{"ast_node_type":"variable","tokens":[{"end":49,"kind":"keyword","start":0,"text":"let"}]}
    let mut get_node_depth = |node: SyntaxNode| {
    let mut node_depths = FxHashMap::<SyntaxNode, usize>::default();
        *node_depths.entry(node).or_insert_with_key(|node| node.ancestors().count())