title: Swift TensorFlowLite Interpreter Error : Type 'Interpreter' has no member 'Options'
body: <p>I clone TensorFlowLite sample app for iOS from following repositery
  <a href="https://github.com/tensorflow/examples/tree/master/lite/examples/image_classification/ios" rel="nofollow noreferrer">https://github.com/tensorflow/examples/tree/master/lite/examples/image_classification/ios</a></p>
  
  <p>Installed pod file that contains 
  <code>pod 'TensorFlowLiteSwift'</code></p>
  
  <p>When I opened <code>ImageClassification.xcworkspace</code>, Xcode directly showing following error. </p>
  
  <blockquote>
    <p>Type 'Interpreter' has no member 'Options'</p>
  </blockquote>
  
  <p>I did not change any code in sample application.</p>
  
  <p>This error is coming while calling <code>Options()</code> of Interpreter</p>
  
  <p><code>var options = Interpreter.Options()</code></p>
  
  <p>I tried to get Option property with some other method of Interpreter but could not get it.</p>
  
  <pre><code>init?(modelFileInfo: FileInfo, labelsFileInfo: FileInfo, threadCount: Int = 1) {
      let modelFilename = modelFileInfo.name
  
      // Construct the path to the model file.
      guard let modelPath = Bundle.main.path(
        forResource: modelFilename,
        ofType: modelFileInfo.extension
      ) else {
        print("Failed to load the model file with name: \(modelFilename).")
        return nil
      }
  
      // Specify the options for the `Interpreter`.
      self.threadCount = threadCount
      var options = Interpreter.Options() // Here the issue is *Type 'Interpreter' has no member 'Options*
      options.threadCount = threadCount
      do {
        // Create the `Interpreter`.
        interpreter = try Interpreter(modelPath: modelPath, options: options)
        // Allocate memory for the model's input `Tensor`s.
        try interpreter.allocateTensors()
      } catch let error {
        print("Failed to create the interpreter with error: \(error.localizedDescription)")
        return nil
      }
      // Load the classes listed in the labels file.
      loadLabels(fileInfo: labelsFileInfo)
    }
  
  </code></pre>
  
  <p>This <code>init()</code> is expected to initialise &amp; give ModelDataHandler object.</p>