Variable KeyboardEvent

    KeyboardEvent: {
        DOM_KEY_LOCATION_LEFT: 1;
        DOM_KEY_LOCATION_NUMPAD: 3;
        DOM_KEY_LOCATION_RIGHT: 2;
        DOM_KEY_LOCATION_STANDARD: 0;
        prototype: KeyboardEvent;
        new (type: string, eventInitDict?: KeyboardEventInit): KeyboardEvent;
    }