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# CoreML Enumerations

## Topics

### Enumerations

[`enum MLModelStructure`](/documentation/CoreML/MLModelStructure-swift.enum)

An enum representing the structure of a model.

[`enum MLReshapeFrequencyHint : NSInteger;`](/documentation/CoreML/MLReshapeFrequencyHint)

[`enum MLShapedArrayBufferLayout`](/documentation/CoreML/MLShapedArrayBufferLayout)

Buffer layout enum

[`enum MLSpecializationStrategy : NSInteger;`](/documentation/CoreML/MLSpecializationStrategy)

The optimization strategy for the model specialization.

### Macros

[`#define ML_EXPORT`](/documentation/CoreML/ML_EXPORT)

[`#define MODELCOLLECTION_SUNSET(...)`](/documentation/CoreML/MODELCOLLECTION_SUNSET)


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