@Override
    public OpenApi after(Context<? extends Trait> context, OpenApi openapi) {
        return context.getService()
                .getTrait(CorsTrait.class)
                .map(corsTrait -> updateModel(context, openapi, corsTrait))
                .orElse(openapi);
    }
The default gateway response for 4xx and 5xx.

TODO: Does this need to be made protocol-specific?
smithy-aws-apigateway-openapi/src/main/java/software/amazon/smithy/aws/apigateway/openapi/AddCorsToGatewayResponses.java