{"ast_node_type":"variable","tokens":[{"end":65,"kind":"keyword","start":0,"text":"let"}]}
    let libs: String = (0..10).fold(String::new(), |mut acc, i| {
    let librs: String = (0..10).fold(String::new(), |mut acc, i| format_to_acc!(acc, "mod m{i};"));
        format_to_acc!(acc, "//- /src/m{i}.rs\nfn foo() {{}}\n\n")