{"ast_node_type":"variable","tokens":[{"end":39,"kind":"keyword","start":0,"text":"let"}]}
            let bash_command = format!(
                cargo_command.iter().map(|s| s.as_ref().to_str().unwrap()).collect::<Vec<_>>();
                "cat examples/regexdna-input.txt | {} | grep -v 'Spawned thread' > res.txt",