# 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.
# ==============================================================================

"""Monitors to track training, report progress and request early stopping."""

from __future__ import absolute_import
from __future__ import division
from __future__ import print_function

from tensorflow.python.platform import tf_logging as logging
from tensorflow.python.training import summary_io


class BaseMonitor(object):
  """Base class for Monitors.

  Defines basic interfaces of Monitors.
  """

  def set_estimator(self, estimator):
    self._estimator = estimator

  def begin(self, max_steps=None):
    """Callback at the beginning of training/evaluation.

    Args: