code: def _build_graph_run(self, run_args):
      
      # Could try to use tfe.py_func(fct) but this would require knowing
      # information about the signature of the function.
  
      # Create a new graph:
      with tf.Graph().as_default() as g:
        # Create placeholder
        input_ = run_args.input
        placeholder = tf.compat.v1.placeholder(
            dtype=input_.dtype, shape=input_.shape)
        output = run_args.fct(placeholder)
      return GraphRun(
          session=raw_nogpu_session(g),
          graph=g,
          placeholder=placeholder,
          output=output,
      )
docs: Create a new graph for the given args.