public static void UnregisterProvider()
{
if (BsonSerializer.zIsSerializationProviderRegistered(typeof(PBSerializationProvider_v1)))
{
if (_trace)
{
pb.Trace.WriteLine("PBSerializationProvider_v1 : unregister provider");
}
BsonSerializer.zUnregisterSerializationProvider(typeof(PBSerializationProvider_v1));
}
}
