ranges/ranges.go
func (l *InclusiveRanges) Len() int {
	var totalLen int
	for _, b := range l.blocks {
		totalLen += b.Len()
	}
	return totalLen
}
func (l *InclusiveRanges) Len() int {
	var totalLen int
	for _, b := range l.blocks {
		totalLen += b.Len()
	}
	return totalLen
}
// Len returns the total number of values across all ranges