func (v Value) InRange(a, b Value) bool {
	return v-a < b-a
}
InRange checks if v is in the range [a,b), i.e., a <= v < b.
package seqnum
type Value uint32
type Size uint32
func (v Value) LessThan(w Value) bool {
	return int32(v-w) < 0
}
func (v Value) LessThanEq(w Value) bool {
	if v == w {
		return true
	}
	return v.LessThan(w)
}