{"ast_node_type":"variable","tokens":[{"end":93,"kind":"keyword","start":0,"text":"let"}]}
        let file_path = match self.cx.source_map().span_to_filename(krate.spans.inner_span) {
    pub fn expand_crate(&mut self, krate: ast::Crate) -> ast::Crate {
            FileName::Real(name) => name