public override (NDArrayOrSymbol, NDArrayOrSymbol[]) HybridForward(NDArrayOrSymbol x, params NDArrayOrSymbol[] args) { var(output, states) = BaseCell.Call(x, args); if (x.IsNDArray) { output = nd.ElemwiseAdd(output, x); } else { output = sym.ElemwiseAdd(output, x, $"t{_counter}_fwd"); } return(output, states); }