private static Onnx.ValueInfoProto getArgumentTensor(String name, Onnx.GraphProto graph) {
        for (Onnx.ValueInfoProto valueInfo : graph.getInputList()) {
            if (valueInfo.getName().equals(name)) {
                return valueInfo;
            }
        }
        return null;
    }
Converts an ONNX graph to a Vespa IntermediateGraph which is the basis
for generating Vespa ranking expressions.

@author lesters
model-integration/src/main/java/ai/vespa/rankingexpression/importer/onnx/GraphImporter.java