protected override void ValidateRemoval(int index)
{
Debug.Assert(!SpanHelper.IsZeroed(ref shapes[index]),
"Either a shape was default constructed (which is almost certainly invalid), or this is attempting to remove a shape that was already removed.");
//Don't have to actually clear out the shape set since everything is blittable. For debug purposes, we do, just to catch invalid usages.
shapes[index] = default;
}
