lease/leasehttp/http.go
func NewHandler(l lease.Lessor, waitch func() <-chan struct{}) http.Handler {
	return &leaseHandler{l, waitch}
}
func NewHandler(l lease.Lessor, waitch func() <-chan struct{}) http.Handler {
	return &leaseHandler{l, waitch}
}
// NewHandler returns an http Handler for lease renewals