code: func Clamp(x, min, max float64) float64 {
  	if x < min {
  		return min
  	}
  	if x > max {
  		return max
  	}
  	return x
  }
docs: // Clamp returns x clamped to the interval [min, max].
  //
  // If x is less than min, min is returned. If x is more than max, max is returned. Otherwise, x is
  // returned.