old_contents: # coding=utf-8
  """
  """
  from __future__ import absolute_import
  
  from flask import current_app
  
  
  class ServiceState(object):
    """ Service state stored in Application.extensions
    """
    #: reference to :class:`Service` instance
    service = None
  
    running = False
  
    def __init__(self, service, running=False):
      self.service = service
      self.running = running
  
  
  class Service(object):
    """ Base class for services.
    """
    #: State class to use for this Service
    AppStateClass = ServiceState
  
    #: service name in Application.extensions / Application.services
    name = None
  
    def __init__(self, app=None):
      if app:
        self.init_app(app)
  
    def init_app(self, app):
      app.extensions[self.name] = self.AppStateClass(self)
      app.services[self.name] = self
  
    def start(self, ignore_state=False):
      """Starts the service.
      """
      self._toggle_running(True, ignore_state)
  
    def stop(self, ignore_state=False):
      """Stops the service.
      """
      self._toggle_running(False, ignore_state)
  
    def _toggle_running(self, run_state, ignore_state=False):
      state = self.app_state
      run_state = bool(run_state)
      if not ignore_state:
          assert run_state ^ state.running
      state.running = run_state
  
    @property
    def app_state(self):
      """ Current service state in current application.
  
      :raise:RuntimeError if working outside application context.
      """
      return current_app.extensions[self.name]
  
    @property
    def running(self):
      """:returns: `False` if working outside application context or if service is
      halted for current application.
      """
      try:
        return self.app_state.running
      except RuntimeError:
        # current_app is None: working outside application context
        return False
  
  
new_contents: # coding=utf-8
  """
  """
  from __future__ import absolute_import
  
  from flask import current_app
  
  
  class ServiceState(object):
    """ Service state stored in Application.extensions
    """
    #: reference to :class:`Service` instance
    service = None
  
    running = False
  
    def __init__(self, service, running=False):
      self.service = service
      self.running = running
  
  
  class Service(object):
    """ Base class for services.
    """
    #: State class to use for this Service
    AppStateClass = ServiceState
  
    #: service name in Application.extensions / Application.services
    name = None
  
    def __init__(self, app=None):
      if app:
        self.init_app(app)
  
    def init_app(self, app):
      app.extensions[self.name] = self.AppStateClass(self)
      app.services[self.name] = self
  
    def start(self, ignore_state=False):
      """Starts the service.
      """
      self._toggle_running(True, ignore_state)
  
    def stop(self, ignore_state=False):
      """Stops the service.
      """
      self._toggle_running(False, ignore_state)
  
    def _toggle_running(self, run_state, ignore_state=False):
      state = self.app_state
      run_state = bool(run_state)
      if not ignore_state:
          assert run_state ^ state.running
      state.running = run_state
  
    @property
    def app_state(self):
      """ Current service state in current application.
  
      :raise:RuntimeError if working outside application context.
      """
      return current_app.extensions[self.name]
  
    @property
    def running(self):
      """
      :returns: `False` if working outside application context or if service is
                halted for current application.
      """
      try:
        return self.app_state.running
      except RuntimeError:
        # current_app is None: working outside application context
        return False
  
  
subject: fix doc formatting