{"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"Option<FxHashMap<SourceRootId,"}]}
        Option<FxHashMap<SourceRootId, (RatomlFileKind, VfsPath, Option<Arc<str>>)>>,
    ratoml_file_change:
    source_map_change: Option<Arc<FxHashMap<SourceRootId, SourceRootId>>>,