void Generate(ServiceModel model, string operationName, out string requestJson, out string responseJson)
{
var operation = model.Operations.First(x => x.Name == operationName);
JsonSampleGenerator generator = new JsonSampleGenerator(model, operation.RequestStructure);
requestJson = generator.Execute();
generator = new JsonSampleGenerator(model, operation.ResponseStructure);
responseJson = generator.Execute();
}