code: public DeviceData[] get_command_specific_argument_list(final boolean fwd) throws DevFailed {
  	final int al_size = get_size(fwd);
  	final DeviceData[] al = new DeviceData[al_size];
  	for (int i = 0; i < al_size; i++) {
  	    al[i] = new DeviceData();
  	}
  	return al;
      }
docs: get_command_argument_list