def unregister_data_paths
      data_paths.each { |path| DataPaths.unregister!(path) }
      data_paths.clear
      return true
    end
def unregister_data_paths
      data_paths.each { |path| DataPaths.unregister!(path) }
      data_paths.clear
      return true
    end
Unregisters all previously registered data directories.

 @return [true]
   Specifies all data paths were successfully unregistered.

 @since 0.3.0