code: def _compute(self, feed_dict, shard):
          
  
          try:
              descriptor, enq = self._tfrun(self._tf_expr[shard], feed_dict=feed_dict)
              self._inputs_waiting.decrement(shard)
  
          except Exception as e:
              montblanc.log.exception("Compute Exception")
              raise
docs: Call the tensorflow compute