sclass NotTooOften {
  long minDelay;
  long lastTime;
  
  *() {}
  *(long *minDelay) {}
  
  bool canDoAgain_willDoIfTrue() {
    if (lastTime == 0 || now() >= lastTime+minDelay)
      ret true with lastTime = now();
    false;
  }
  
  bool yo() { ret canDoAgain_willDoIfTrue(); }
  bool get() { ret canDoAgain_willDoIfTrue(); }
}