# Instance properties

## Private

### `#closing`

The private property indicates the wrap closing of a generic type variable [`Closing`](https://docs.angular-package.dev/text/wrapper/generic-type-variables#wrap-less-than...-closing-greater-than).

{% code title="wrap.class.ts" %}

```typescript
#closing: Closing;
```

{% endcode %}

### `#opening`

The private property indicates the wrap opening of a generic type variable [`Opening`](https://docs.angular-package.dev/text/wrapper/generic-type-variables#wrap-less-than-opening-...greater-than).

{% code title="wrap.class.ts" %}

```typescript
#opening: Opening;
```

{% endcode %}