Op("conv2d") {
        javaPackage = namespaceJavaPackage
        javaOpClass = "Conv2D"
        Input(NUMERIC, "layerInput") { description = "the input to max pooling 2d operation - 4d CNN (image) activations in NCHW format" }
        Input(NUMERIC, "weights") { description = "Weights for the convolution operation. 4 dimensions with format [kernelHeight, kernelWidth, inputChannels, outputChannels]" }