message: Updated vision import entry
diff: from tensorflow_lite_support.python.task.vision import image_classifier
  from tensorflow_lite_support.python.task.vision import image_embedder
  +from tensorflow_lite_support.python.task.vision import image_segmenter
  from tensorflow_lite_support.python.task.vision import object_detector
  from tensorflow_lite_support.python.task.vision.core import tensor_image
  @@ -25,4 +26,6 @@ ObjectDetector = object_detector.ObjectDetector
  ObjectDetectorOptions = object_detector.ObjectDetectorOptions
  ImageEmbedder = image_embedder.ImageEmbedder
  ImageEmbedderOptions = image_embedder.ImageEmbedderOptions
  +ImageSegmenter = image_segmenter.ImageSegmenter
  +ImageSegmenterOptions = image_segmenter.ImageSegmenterOptions
  TensorImage = tensor_image.TensorImage
  