Group hasn't `lights` property

class Group check lights attribute, but don’t hold it.

if (!this._attributes.lights) {
   throw new ApiError('Missing a valid lights attribute for the Group');
}

It’s a normal behavior, or a bug?

[peter-murray]

This is intentional, a user should never get one of these instances now, as the types from the bridge itself will be instantiated.

It is done this way due to the lights attribute being required in some groups and not others, but without a lot of hacking of the type system in use to support this one edge case, where I would like to toggle the required state on the attribute, it is just considerably easier to ensure that the concrete classes pass the attribute for the lights configured to what it wants.

This is in line with what I had to do in some of the sensor based objects as well.

[peter-murray]

Updated in 4.0.3