code: func BreakerInterval(interval time.Duration) Option {
  	return func(r *Rabbus) error {
  		r.config.breaker.interval = interval
  		return nil
  	}
  }
docs: // BreakerInterval is the cyclic period of the closed state for CircuitBreaker to clear the internal counts,
  // If Interval is 0, CircuitBreaker doesn't clear the internal counts during the closed state.