+ /// Write the provided `NetworkGraph` to the path provided at `FilesystemPersister`
+ /// initialization, within a file called "network_graph"
+ pub fn persist_network_graph(data_dir: String, network_graph: &NetworkGraph) -> Result<(), std::io::Error> {
+ let path = PathBuf::from(data_dir);
+ util::write_to_file(path, "network_graph".to_string(), network_graph)
+ }
+