@Override
    public List<ApiGatewayConfig.ApiType> getApiTypes() {
        return ListUtils.of(ApiGatewayConfig.ApiType.REST, ApiGatewayConfig.ApiType.HTTP);
    }
Adds API Gateway binary media types as a top-level key in the OpenAPI model
named {@code x-amazon-apigateway-binary-media-types}.

<p>This data is used by API Gateway to determine which content-types do
not contain UTF-8 data.
smithy-aws-apigateway-openapi/src/main/java/software/amazon/smithy/aws/apigateway/openapi/AddBinaryTypes.java