final private Map<String, Function2<WriteGraph, String, Object>> getCommands = new HashMap<String, Function2<WriteGraph, String, Object>>();
final private Map<String, Function3<WriteGraph, File, String, String>> listCommands = new HashMap<String, Function3<WriteGraph, File, String, String>>();
final private Map<String, Function2<WriteGraph, String, String>> execCommands = new HashMap<String, Function2<WriteGraph, String, String>>();
final private Map<String, Function2<WriteGraph, String, Object>> getCommands = new HashMap<String, Function2<WriteGraph, String, Object>>();
final private Map<String, Function3<WriteGraph, File, String, String>> listCommands = new HashMap<String, Function3<WriteGraph, File, String, String>>();
final private Map<String, Function2<WriteGraph, String, String>> execCommands = new HashMap<String, Function2<WriteGraph, String, String>>();