{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"source_map_change:"}]}
    source_map_change: Option<Arc<FxHashMap<SourceRootId, SourceRootId>>>,
        Option<FxHashMap<SourceRootId, (RatomlFileKind, VfsPath, Option<Arc<str>>)>>,
}