public void assertBoundFunction(String name, String expression, Model model) {
        ExpressionFunction function = model.referencedFunctions().get(FunctionReference.fromSerial(name).get());
        assertNotNull("Function '" + name + "' is present", function);
        assertEquals(expression, function.getBody().getRoot().toString());
    }
Helper for testing model import and evaluation

@author bratseth
model-evaluation/src/test/java/ai/vespa/models/evaluation/ModelTester.java