{"ast_node_type":"other","tokens":[{"end":88,"kind":"keyword","start":0,"text":"env::var(\"CHALK_DEBUG\").ok().and_then(|it|"}]}
        env::var("CHALK_DEBUG").ok().and_then(|it| it.parse().ok()).unwrap_or_default();
    let filter: tracing_subscriber::filter::Targets =
    let layer = HierarchicalLayer::default()