text: // set to 'private static' so that inheritor won't be able to directly
  // access this variable and so that save_object() won't save it to the .o file
  
  private staticv string *ids;
  
  void
  remove()
  {
  	// add code here to prevent unwanted destructions.
  	// update attributes of the container and the containees.
  	destruct(this_object());
  }
  
  #ifndef __NO_ENVIRONMENT__
  int
  move(mixed dest)
  {
  	// add code here to prevent disallowed moves (target is full, object
  	// is immovable, etc.).
  	move_object(dest);
  }
  #endif
  
  void
  set_ids(string *arg)
  {
  	// probably want to add some security here.
  	ids = arg;
  }
  
  int
  id(string arg)
  {
  	if (!arg || !ids) {
  		return 0;
  	}
  	return (member_array(arg, ids) != -1);
  }
  