old_contents: # Lint as: python3
  # Copyright 2020 DeepMind Technologies Limited. 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.
  
  """Stop a running Launchpad program."""
  
  from absl import flags
  
  from launchpad import context
  from launchpad.launch import worker_manager
  
  FLAGS = flags.FLAGS
  
  
  def stop():
    """Terminates the entire experiment."""
    context.get_context().program_stopper()
  
  
  def wait_for_stop():
    """Waits for program's termination/preemption signal."""
    worker_manager.get_worker_manager().wait_for_stop()
  
new_contents: # Lint as: python3
  # Copyright 2020 DeepMind Technologies Limited. 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.
  
  """Stop a running Launchpad program."""
  
  from absl import flags
  
  from launchpad import context
  
  FLAGS = flags.FLAGS
  
  
  def stop():
    """Terminates the entire experiment."""
    context.get_context().program_stopper()
  
subject: Drop unused wait_for_stop.