public static IntegrationTraitIndex of(Model model) {
        return model.getKnowledge(IntegrationTraitIndex.class, IntegrationTraitIndex::new);
    }
Computes the API Gateway integration for each operation,
resource, and service shape in a model.
smithy-aws-apigateway-traits/src/main/java/software/amazon/smithy/aws/apigateway/traits/IntegrationTraitIndex.java