old_contents: """
  A set of objects that are suited to being the basis
  of font development tools. This works on UFO files.
  """
  from __future__ import absolute_import
  
  try:
      from _version import __version__
  except ImportError:
      try:
          from setuptools_scm import get_version
          __version__ = get_version()
      except ImportError:
          __version__ = 'unknown'
  
  from defcon.errors import DefconError
  
  from defcon.objects.font import Font
  from defcon.objects.layerSet import LayerSet
  from defcon.objects.layer import Layer
  from defcon.objects.glyph import Glyph, addRepresentationFactory, removeRepresentationFactory
  from defcon.objects.contour import Contour
  from defcon.objects.point import Point
  from defcon.objects.component import Component
  from defcon.objects.anchor import Anchor
  from defcon.objects.image import Image
  from defcon.objects.info import Info
  from defcon.objects.groups import Groups
  from defcon.objects.kerning import Kerning
  from defcon.objects.features import Features
  from defcon.objects.lib import Lib
  from defcon.objects.uniData import UnicodeData
  from defcon.objects.color import Color
  from defcon.objects.guideline import Guideline
  from defcon.objects.layoutEngine import LayoutEngine
  
  def registerRepresentationFactory(cls, name, factory, destructiveNotifications=None):
      """
      Register **factory** as a representation factory
      for all instances of **cls** (a :class:`defcon.objects.base.BaseObject`)
      subclass under **name**.
      """
      if destructiveNotifications is None:
          destructiveNotifications = [cls.changeNotificationName]
      destructiveNotifications = set(destructiveNotifications)
      cls.representationFactories[name] = dict(factory=factory, destructiveNotifications=destructiveNotifications)
  
  def unregisterRepresentationFactory(cls, name):
      """
      Unregister the representation factory stored under
      **name** in all instances of **cls**.
      """
      del cls.representationFactories[name]
  
new_contents: """
  A set of objects that are suited to being the basis
  of font development tools. This works on UFO files.
  """
  from __future__ import absolute_import
  
  try:
      from ._version import __version__
  except ImportError:
      try:
          from setuptools_scm import get_version
          __version__ = get_version()
      except ImportError:
          __version__ = 'unknown'
  
  from defcon.errors import DefconError
  
  from defcon.objects.font import Font
  from defcon.objects.layerSet import LayerSet
  from defcon.objects.layer import Layer
  from defcon.objects.glyph import Glyph, addRepresentationFactory, removeRepresentationFactory
  from defcon.objects.contour import Contour
  from defcon.objects.point import Point
  from defcon.objects.component import Component
  from defcon.objects.anchor import Anchor
  from defcon.objects.image import Image
  from defcon.objects.info import Info
  from defcon.objects.groups import Groups
  from defcon.objects.kerning import Kerning
  from defcon.objects.features import Features
  from defcon.objects.lib import Lib
  from defcon.objects.uniData import UnicodeData
  from defcon.objects.color import Color
  from defcon.objects.guideline import Guideline
  from defcon.objects.layoutEngine import LayoutEngine
  
  def registerRepresentationFactory(cls, name, factory, destructiveNotifications=None):
      """
      Register **factory** as a representation factory
      for all instances of **cls** (a :class:`defcon.objects.base.BaseObject`)
      subclass under **name**.
      """
      if destructiveNotifications is None:
          destructiveNotifications = [cls.changeNotificationName]
      destructiveNotifications = set(destructiveNotifications)
      cls.representationFactories[name] = dict(factory=factory, destructiveNotifications=destructiveNotifications)
  
  def unregisterRepresentationFactory(cls, name):
      """
      Unregister the representation factory stored under
      **name** in all instances of **cls**.
      """
      del cls.representationFactories[name]
  
subject: Update __init__.py