message: Allow setting server_def on tf.enable_eager_execution
diff: @@ -34,6 +34,7 @@ To use, at program startup, call `tfe.enable_eager_execution()`.
  @@run
  @@enable_eager_execution
  +@@enable_remote_eager_execution
  @@custom_gradient
  @@ -114,6 +115,7 @@ from tensorflow.python.eager.execution_callbacks import inf_nan_callback
  from tensorflow.python.eager.execution_callbacks import nan_callback
  from tensorflow.python.eager.execution_callbacks import seterr
  from tensorflow.python.framework.ops import enable_eager_execution
  +from tensorflow.python.framework.ops import enable_eager_execution_internal as enable_remote_eager_execution
  from tensorflow.python.framework.ops import eager_run as run
  from tensorflow.python.framework.test_util import run_in_graph_and_eager_modes as run_test_in_graph_and_eager_modes
  from tensorflow.python.framework.test_util import run_all_in_graph_and_eager_modes as run_all_tests_in_graph_and_eager_modes
  