title: Problem with running object_detection_tutorial TypeError: load() missing 2 required positional arguments
body: <p>I'm pretty new to tensorflow and I'm trying to run object_detection_tutorial. I'm getting TypeErrror and don't know how to fix it.</p>
  
  <p>This is load_model function which misses 2 arguments:</p>
  
  <p>tags: Set of string tags to identify the required MetaGraphDef. These should correspond to the tags used when saving the variables using the SavedModel save() API.</p>
  
  <p>export_dir: Directory in which the SavedModel protocol buffer and variables to be loaded are located.</p>
  
  <pre><code>def load_model(model_name):
    base_url = 'http://download.tensorflow.org/models/object_detection/'
    model_file = model_name + '.tar.gz'
    model_dir = tf.keras.utils.get_file(
      fname=model_name, 
      origin=base_url + model_file,
      untar=True)
  
    model_dir = pathlib.Path(model_dir)/"saved_model"
  
    model = tf.saved_model.load(str(model_dir))
    model = model.signatures['serving_default']
  
    return model
  </code></pre>
  
  <pre><code>WARNING:tensorflow:From &lt;ipython-input-9-f8a3c92a04a4&gt;:11: load (from tensorflow.python.saved_model.loader_impl) is deprecated and will be removed in a future version.
  Instructions for updating:
  This function will only be available through the v1 compatibility library as tf.compat.v1.saved_model.loader.load or tf.compat.v1.saved_model.load. There will be a new function for importing SavedModels in Tensorflow 2.0.
  
  ---------------------------------------------------------------------------
  TypeError                                 Traceback (most recent call last)
  &lt;ipython-input-12-e10c73a22cc9&gt; in &lt;module&gt;
        1 model_name = 'ssd_mobilenet_v1_coco_2017_11_17'
  ----&gt; 2 detection_model = load_model(model_name)
  
  &lt;ipython-input-9-f8a3c92a04a4&gt; in load_model(model_name)
        9   model_dir = pathlib.Path(model_dir)/"saved_model"
       10 
  ---&gt; 11   model = tf.saved_model.load(str(model_dir))
       12   model = model.signatures['serving_default']
       13 
  
  ~/.local/lib/python3.6/site-packages/tensorflow/python/util/deprecation.py in new_func(*args, **kwargs)
      322               'in a future version' if date is None else ('after %s' % date),
      323               instructions)
  --&gt; 324       return func(*args, **kwargs)
      325     return tf_decorator.make_decorator(
      326         func, new_func, 'deprecated',
  
  TypeError: load() missing 2 required positional arguments: 'tags' and 'export_dir'
  </code></pre>
  
  <p>Can you help me fix this and run my first object detector :D?</p>