init(source:labels:weights:lossDescriptor:)
Declaration
init(source: MPSNNImageNode, labels: MPSNNImageNode, weights: MPSNNImageNode?, lossDescriptor descriptor: MPSCNNLossDescriptor)init(source: MPSNNImageNode, labels: MPSNNImageNode, weights: MPSNNImageNode?, lossDescriptor descriptor: MPSCNNLossDescriptor)