title: List of tensor names in graph in Tensorflow
body: <p>The graph object in Tensorflow has a method called "get_tensor_by_name(name)". Is there anyway to get a list of valid tensor names?</p>
  
  <p>If not, does anyone know the valid names for the pretrained model inception-v3 <a href="https://www.tensorflow.org/versions/v0.6.0/tutorials/image_recognition/index.html">from here</a>? From their example, pool_3, is one valid tensor but a list of all of them would be nice. I looked at <a href="http://arxiv.org/abs/1512.00567">the paper referred to</a> and some of the layers seems to correspond to the sizes in table 1 but not all of them.</p>