diff --git a/tensorflow/contrib/graph_editor/reroute.py b/tensorflow/contrib/graph_editor/reroute.py
index 4c5f281badd..c14bcac3be0 100644
--- a/tensorflow/contrib/graph_editor/reroute.py
+++ b/tensorflow/contrib/graph_editor/reroute.py
@@ -18,11 +18,13 @@ from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function
 
-from tensorflow.contrib.graph_editor import subgraph
-from tensorflow.contrib.graph_editor import util
-from tensorflow.python.framework import ops as tf_ops
+from tensorflow.contrib.graph_editor import subgraph as _subgraph
+from tensorflow.contrib.graph_editor import util as _util
+from tensorflow.python.framework import ops as _tf_ops
 
-__all__ = [
+from tensorflow.python.util.all_util import remove_undocumented
+
+_allowed_symbols = [
     "swap_ts",
     "reroute_ts",
     "swap_inputs",
@@ -46,8 +48,8 @@ def _check_ts_compatibility(ts0, ts1):
     ValueError: if any pair of tensors (same index in ts0 and ts1) have
       a dtype or a shape which is not compatible.
   """
-  ts0 = util.make_list_of_t(ts0)
-  ts1 = util.make_list_of_t(ts1)
+  ts0 = _util.make_list_of_t(ts0)
+  ts1 = _util.make_list_of_t(ts1)
   if len(ts0) != len(ts1):
     raise ValueError("ts0 and ts1 have different sizes: {} != {}".format(
         len(ts0), len(ts1)))
@@ -176,13 +178,13 @@ def _reroute_ts(ts0, ts1, mode, can_modify=None, cannot_modify=None):
       converted to a list of `tf.Operation`.
   """
   a2b, b2a = _RerouteMode.check(mode)
-  ts0 = util.make_list_of_t(ts0)
-  ts1 = util.make_list_of_t(ts1)
+  ts0 = _util.make_list_of_t(ts0)
+  ts1 = _util.make_list_of_t(ts1)
   _check_ts_compatibility(ts0, ts1)
   if cannot_modify is not None:
-    cannot_modify = frozenset(util.make_list_of_op(cannot_modify))
+    cannot_modify = frozenset(_util.make_list_of_op(cannot_modify))
   if can_modify is not None:
-    can_modify = frozenset(util.make_list_of_op(can_modify))
+    can_modify = frozenset(_util.make_list_of_op(can_modify))
   nb_update_inputs = 0
   precomputed_consumers = []
   # precompute consumers to avoid issue with repeated tensors:
@@ -268,11 +270,11 @@ def _reroute_sgv_remap(sgv0, sgv1, mode):
     ValueError: if sgv0 and sgv1 do not belong to the same graph.
   """
   a2b, b2a = _RerouteMode.check(mode)
-  if not isinstance(sgv0, subgraph.SubGraphView):
+  if not isinstance(sgv0, _subgraph.SubGraphView):
     raise TypeError("Expected a SubGraphView, got {}".format(type(sgv0)))
-  if not isinstance(sgv1, subgraph.SubGraphView):
+  if not isinstance(sgv1, _subgraph.SubGraphView):
     raise TypeError("Expected a SubGraphView, got {}".format(type(sgv1)))
-  util.check_graphs(sgv0, sgv1)
+  _util.check_graphs(sgv0, sgv1)
   sgv0_ = sgv0.copy()
   sgv1_ = sgv1.copy()
   # pylint: disable=protected-access
@@ -327,13 +329,13 @@ def _reroute_sgv_inputs(sgv0, sgv1, mode):
     StandardError: if sgv0 or sgv1 cannot be converted to a SubGraphView using
       the same rules than the function subgraph.make_view.
   """
-  sgv0 = subgraph.make_view(sgv0)
-  sgv1 = subgraph.make_view(sgv1)
-  util.check_graphs(sgv0, sgv1)
+  sgv0 = _subgraph.make_view(sgv0)
+  sgv1 = _subgraph.make_view(sgv1)
+  _util.check_graphs(sgv0, sgv1)
   can_modify = sgv0.ops + sgv1.ops
   # also allow consumers of passthrough to be modified:
-  can_modify += util.get_consuming_ops(sgv0.passthroughs)
-  can_modify += util.get_consuming_ops(sgv1.passthroughs)
+  can_modify += _util.get_consuming_ops(sgv0.passthroughs)
+  can_modify += _util.get_consuming_ops(sgv1.passthroughs)
   _reroute_ts(sgv0.inputs, sgv1.inputs, mode, can_modify=can_modify)
   _reroute_sgv_remap(sgv0, sgv1, mode)
   return sgv0, sgv1
@@ -357,9 +359,9 @@ def _reroute_sgv_outputs(sgv0, sgv1, mode):
     StandardError: if sgv0 or sgv1 cannot be converted to a SubGraphView using
       the same rules than the function subgraph.make_view.
   """
-  sgv0 = subgraph.make_view(sgv0)
-  sgv1 = subgraph.make_view(sgv1)
-  util.check_graphs(sgv0, sgv1)
+  sgv0 = _subgraph.make_view(sgv0)
+  sgv1 = _subgraph.make_view(sgv1)
+  _util.check_graphs(sgv0, sgv1)
   cannot_modify = sgv0.ops + sgv1.ops
   _reroute_ts(sgv0.outputs, sgv1.outputs, mode, cannot_modify=cannot_modify)
   return sgv0, sgv1
@@ -432,9 +434,9 @@ def remove_control_inputs(op, cops):
     TypeError: if op is not a `tf.Operation`.
     ValueError: if any cop in cops is not a control input of op.
   """
-  if not isinstance(op, tf_ops.Operation):
+  if not isinstance(op, _tf_ops.Operation):
     raise TypeError("Expected a tf.Operation, got: {}", type(op))
-  cops = util.make_list_of_op(cops, allow_graph=False)
+  cops = _util.make_list_of_op(cops, allow_graph=False)
   for cop in cops:
     if cop not in op.control_inputs:
       raise ValueError("{} is not a control_input of {}".format(op.name,
@@ -457,9 +459,9 @@ def add_control_inputs(op, cops):
     TypeError: if op is not a tf.Operation
     ValueError: if any cop in cops is already a control input of op.
   """
-  if not isinstance(op, tf_ops.Operation):
+  if not isinstance(op, _tf_ops.Operation):
     raise TypeError("Expected a tf.Operation, got: {}", type(op))
-  cops = util.make_list_of_op(cops, allow_graph=False)
+  cops = _util.make_list_of_op(cops, allow_graph=False)
   for cop in cops:
     if cop in op.control_inputs:
       raise ValueError("{} is already a control_input of {}".format(op.name,
@@ -468,3 +470,5 @@ def add_control_inputs(op, cops):
   op._control_inputs += cops
   op._recompute_node_def()
   # pylint: enable=protected-access
+
+remove_undocumented(__name__, _allowed_symbols)
diff --git a/tensorflow/tools/docs/generate.py b/tensorflow/tools/docs/generate.py
index 0a41fa473da..7107a285b5b 100644
--- a/tensorflow/tools/docs/generate.py
+++ b/tensorflow/tools/docs/generate.py
@@ -157,7 +157,6 @@ def extract():
       'contrib.graph_editor': [
           'edit',
           'match',
-          'reroute',
           'subgraph',
           'transform',
           'select',