whole_func_string: function unHookSync(rs) {
    if (! rs._dropboxOrigSync) { return; } // not hooked
    rs.sync.sync = rs._dropboxOrigSync;
    delete rs._dropboxOrigSync;
  }
func_code_string: function unHookSync(rs) {
    if (! rs._dropboxOrigSync) { return; } // not hooked
    rs.sync.sync = rs._dropboxOrigSync;
    delete rs._dropboxOrigSync;
  }
func_documentation_string: Unhooking the sync
  
  TODO: document