public void performDefaultCodegenTransforms() {
        transforms.add((model, transformer) -> {
            LOGGER.finest("Performing default codegen model transforms for directed codegen");
            return simplifyModelForServiceCodegen(model, Objects.requireNonNull(service), transformer);
        });
    }
Set to true to apply {@link CodegenDirector#simplifyModelForServiceCodegen}
prior to code generation.
smithy-codegen-core/src/main/java/software/amazon/smithy/codegen/core/directed/CodegenDirector.java