Mark Tensor and Value final.

Differential Revision: D79381684

Pull Request resolved: pytorch#13049

Author: shoumikhin

extension/apple/ExecuTorch/Exported/ExecuTorch+Tensor.swift

@@ -582,7 +582,7 @@ public extension AnyTensor {
 /// This class encapsulates a type-erasing `AnyTensor` instance and provides a variety of
 /// initializers and utility methods to work with tensor data.
 @available(*, deprecated, message: "This API is experimental.")
-public class Tensor<T: Scalar>: Equatable {
+public final class Tensor<T: Scalar>: Equatable {
   /// The data type of the tensor's elements.
   public var dataType: DataType { anyTensor.dataType }
 

extension/apple/ExecuTorch/Exported/ExecuTorchTensor.h

@@ -91,6 +91,7 @@ NSInteger ExecuTorchElementCountOfShape(NSArray<NSNumber *> *shape)
  */
  NS_SWIFT_NAME(AnyTensor)
 __attribute__((deprecated("This API is experimental.")))
+__attribute__((objc_subclassing_restricted))
 @interface ExecuTorchTensor : NSObject<NSCopying>
 
 /**

extension/apple/ExecuTorch/Exported/ExecuTorchValue.h

@@ -50,6 +50,7 @@ typedef float ExecuTorchFloatValue
  */
 NS_SWIFT_NAME(Value)
 __attribute__((deprecated("This API is experimental.")))
+__attribute__((objc_subclassing_restricted))
 @interface ExecuTorchValue : NSObject <NSCopying>
 
 /**