d = Duration("key", d).Value.Duration()
		x = Any("key", p).Value.Any()
	}))
	if a != 0 {
		t.Errorf("got %d allocs, want zero", a)
	}
	_ = u
	_ = f
	_ = b
	_ = s
	_ = x
}

func BenchmarkAttrString(b *testing.B) {
	var (
		is string
		u  string
		f  string
		bn string
		s  string
		x  string
		ds string
		p  = &is
		d  time.Duration
	)
	b.ReportAllocs()
	for i := 0; i < b.N; i++ {