# Copyright 2016 The TensorFlow Authors. All Rights Reserved.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

# ==============================================================================

"""Training helper that checkpoints models and computes summaries."""

import contextlib

import os

import time

from tensorflow.core.framework.summary_pb2 import Summary

from tensorflow.core.util.event_pb2 import SessionLog

from tensorflow.python.eager import context

from tensorflow.python.framework import dtypes

from tensorflow.python.framework import meta_graph

from tensorflow.python.framework import ops

from tensorflow.python.ops import control_flow_ops

from tensorflow.python.ops import lookup_ops

from tensorflow.python.ops import variables

from tensorflow.python.platform import tf_logging as logging

from tensorflow.python.summary import summary as _summary

from tensorflow.python.training import coordinator

from tensorflow.python.training import saver as saver_mod

from tensorflow.python.training import session_manager as session_manager_mod

from tensorflow.python.training import training_util

from tensorflow.python.util import deprecation

from tensorflow.python.util.tf_export import tf_export

@tf_export(v1=["train.Supervisor"])

class Supervisor: