message: Change deprecated OPTIMIZE_FOR_SIZE to DEFAULT
diff: @@ -162,7 +162,7 @@ def train_net(
  # Convert the model to the TensorFlow Lite format with quantization
  converter = tf.lite.TFLiteConverter.from_keras_model(model)
  - converter.optimizations = [tf.lite.Optimize.OPTIMIZE_FOR_SIZE]
  + converter.optimizations = [tf.lite.Optimize.DEFAULT]
  tflite_model = converter.convert()
  # Save the model to disk
  