static internal void GatherKeys <TKey>(IReadOnlyPropertyBlock <TKey> inBlock, HashSet <TKey> ioKeys) where TKey : IEquatable <TKey>
{
foreach (var key in inBlock.Keys(false))
{
ioKeys.Add(key);
}
if (inBlock.Prototype != null)
{
GatherKeys(inBlock.Prototype, ioKeys);
}
}
