panic(fmt.Sprintf("got %s, want %s", got, want))
	}

	j3 := &_ListNum[int]{nil, 1}
	j2 := &_ListNum[int]{j3, 32}
	j1 := &_ListNum[int]{j2, 2}
	if got, want := j1.ClippedLargest(), 2; got != want {
		panic(fmt.Sprintf("got %d, want %d", got, want))
	}
	g3 := &_ListNum[float64]{nil, 13.5}
	g2 := &_ListNum[float64]{g3, 1.2}
	g1 := &_ListNum[float64]{g2, 4.5}
	if got, want := g1.ClippedLargest(), 4.5; got != want {