old_contents: #!/usr/bin/env python
  """TaskProcess class to provide helper methods around worker task's process.
  
  Attributes:
      log (logging.Logger): the log object for this module
  
  """
  
  import asyncio
  import logging
  import os
  import signal
  from asyncio.subprocess import Process
  
  log = logging.getLogger(__name__)
  
  
  class TaskProcess:
      """Wraps worker task's process."""
  
      def __init__(self, process: Process):
          """Constructor.
  
          Args:
              process (Process): task process
          """
          self.process = process
          self.stopped_due_to_worker_shutdown = False
  
      async def worker_shutdown_stop(self):
          """Invoke on worker shutdown to stop task process."""
          self.stopped_due_to_worker_shutdown = True
          await self.stop()
  
      async def stop(self):
          """Stop the current task process.
  
          Starts with SIGTERM, gives the process 1 second to terminate, then kills it
          """
          # negate pid so that signals apply to process group
          pgid = -self.process.pid
          try:
              os.kill(pgid, signal.SIGTERM)
              await asyncio.sleep(1)
              os.kill(pgid, signal.SIGKILL)
          except (OSError, ProcessLookupError):
              return
  
new_contents: #!/usr/bin/env python
  """TaskProcess class to provide helper methods around worker task's process.
  
  Attributes:
      log (logging.Logger): the log object for this module
  
  """
  
  import asyncio
  import logging
  import os
  import signal
  from asyncio.subprocess import Process
  
  log = logging.getLogger(__name__)
  
  
  class TaskProcess:
      """Wraps worker task's process."""
  
      def __init__(self, process: Process):
          """Constructor.
  
          Args:
              process (Process): task process
          """
          self.process = process
          self.stopped_due_to_worker_shutdown = False
  
      async def worker_shutdown_stop(self) -> None:
          """Invoke on worker shutdown to stop task process."""
          self.stopped_due_to_worker_shutdown = True
          await self.stop()
  
      async def stop(self):
          """Stop the current task process.
  
          Starts with SIGTERM, gives the process 1 second to terminate, then kills it
          """
          # negate pid so that signals apply to process group
          pgid = -self.process.pid
          try:
              os.kill(pgid, signal.SIGTERM)
              await asyncio.sleep(1)
              os.kill(pgid, signal.SIGKILL)
          except (OSError, ProcessLookupError):
              return
  
subject: Add type annotation to worker_shutdown_stop, which was called in a typed context