code: func BackoffWithJitter(algorithm backoff.Algorithm, transformation jitter.Transformation) Strategy {
  	return func(attempt uint) bool {
  		if 0 < attempt {
  			time.Sleep(transformation(algorithm(attempt)))
  		}
  
  		return true
  	}
  }
docs: // BackoffWithJitter creates a Strategy that waits before each attempt, with a
  // duration as defined by the given backoff.Algorithm and jitter.Transformation.