sclass SavedSessions extends Module {
  SS sessions = synchroMap(); // TODO: notifyingMap(rSetVarToTrue(changed));

  transient JTable table;
  transient new Var<Bool> changed;
  
  JComponent visualize() { table = sexyTable(); changed.set(true); ret table; }
  void unvisualize2() { table = null; }
  
  void update() {
    if (atomicFlipVarToFalse(changed))
      dataToTable_uneditable(listToMapsWithSingleKey("Session Name", keys(sessions)));
  }
}