static OrtEnvironment ortEnvironment() {
        if (ortEnvironment.env() != null) return ortEnvironment.env();
        throw throwUnchecked(ortEnvironment.failure());
    }
Provides the classic embedded ONNX runtime based on the 'onnxruntime' Java library.

@author bjorncs
model-integration/src/main/java/ai/vespa/modelintegration/evaluator/EmbeddedOnnxRuntime.java