title: What are the tensorflow hash functions?
body: <p><a href="https://www.tensorflow.org/api_docs/python/tf/string_to_hash_bucket_fast" rel="nofollow noreferrer">Here</a> is the page describing TensorFlow's <code>tf.string_to_hash_bucket_fast</code>.  (Version is currently 1.3.) It says the file that defines this function is <code>tensorflow/python/ops/gen_string_ops.py</code>, which doesn't seem to exist on github.  The <code>gen</code> might mean it's generated.  Okay.</p>
  
  <p>What is the solid definition of this function (i.e. so I could reimplement it if I wanted on another platform)?</p>