public async Task InvokeFunction()
        {
            var root   = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "../../../../");
            var config = Hypar.Model.Function.FromJson(File.ReadAllText(Path.Combine(root, "hypar.json")));

            var store = new FileModelStore <RoofBySketchInputs>(root);

            // Create an input object with default values.
            var input = new RoofBySketchInputs();

            // Read local input files to populate incoming test data.
            if (config.ModelDependencies != null)
            {
                var modelInputKeys = new Dictionary <string, string>();
                foreach (var dep in config.ModelDependencies)
                {
                    modelInputKeys.Add(dep.Name, $"{dep.Name}.json");
                }
                input.ModelInputKeys = modelInputKeys;
            }

            // Invoke the function.
            // The function invocation uses a FileModelStore
            // which will write the resulting model to disk.
            // You'll find the model at "./model.gltf"
            var l = new InvocationWrapper <RoofBySketchInputs, RoofBySketchOutputs>(store, RoofBySketch.Execute);
            await l.InvokeAsync(input);
        }
        public void RoofBySketchTest()
        {
            var polygon =
                new Polygon(
                    new[]
            {
                new Vector3(20.0, 20.0),
                new Vector3(40.0, 20.0),
                new Vector3(40.0, 40.0),
                new Vector3(20.0, 40.0)
            });
            var inputs =
                new RoofBySketchInputs(
                    perimeter: polygon,
                    roofElevation: 55.0,
                    roofThickness: 0.25,
                    "", "", new Dictionary <string, string>(), "", "", "");
            var outputs = RoofBySketch.Execute(new Dictionary <string, Model> {
                { "Test", new Model() }
            }, inputs);

            System.IO.File.WriteAllText(OUTPUT + "RoofBySketch.json", outputs.Model.ToJson());
            outputs.Model.ToGlTF(OUTPUT + "RoofBySketch.glb");
        }