func SliceContains(slice []string, val string) bool {
	if slice == nil {
		return false
	}

	for _, it := range slice {
		if it == val {
			return true
		}
	}
	return false
}
func SliceContains(slice []string, val string) bool {
	if slice == nil {
		return false
	}

	for _, it := range slice {
		if it == val {
			return true
		}
	}
	return false
}
// SliceContains determines whether val is an element in slice.