var ip *int
	encodeErr, panicErr := encodeAndRecover(ip)
	if encodeErr != nil {
		t.Fatal("error in encode:", encodeErr)
	}
	if panicErr == nil {
		t.Fatal("top-level nil pointer did not panic")
	}
	errMsg := panicErr.Error()
	if !strings.Contains(errMsg, "nil pointer") {
		t.Fatal("expected nil pointer error, got:", errMsg)
	}
}

func encodeAndRecover(value any) (encodeErr, panicErr error) {