public void Add(string modelFile, ModelTransformInfo modelTrf)
        {
            if (MemberModels.ContainsKey(modelFile))
            {
                return;
            }
            FederationModelItem mItem = new FederationModelItem();

            mItem.ModelFileName  = modelFile;
            mItem.ModelTransform = modelTrf;
            MemberModels.Add(modelFile, mItem);
        }