old_contents: import textwrap
  from collections import namedtuple
  
  from django.utils.safestring import mark_safe
  
  
  Docstring = namedtuple('Docstring', ('summary', 'body'))
  
  
  def split_docstring(value):
      """
      Splits the docstring of the given value into it's summary and body.
  
      :returns: a 2-tuple of the format ``(summary, body)``
      """
      docstring = getattr(value, '__doc__', '') or ''
      docstring = textwrap.dedent(docstring)
      if not docstring:
          return None
  
      pieces = docstring.strip().split('\n\n', 1)
      try:
          body = pieces[1]
      except IndexError:
          body = None
  
      return Docstring(pieces[0], body)
  
  
  def unimplemented(*args, **kwargs):
      raise NotImplementedError
  
  
  def unescape(context):
      """
      Accepts a context object, returning a new context with autoescape off.
  
      Useful for rendering plain-text templates without having to wrap the entire
      template in an `{% autoescape off %}` tag.
      """
      for key in context:
          if type(context[key]) is str:
              context[key] = mark_safe(context)
      return context
  
new_contents: import textwrap
  from collections import namedtuple
  
  from django.utils.safestring import mark_safe
  
  
  Docstring = namedtuple('Docstring', ('summary', 'body'))
  
  
  def split_docstring(value):
      """
      Splits the docstring of the given value into it's summary and body.
  
      :returns: a 2-tuple of the format ``(summary, body)``
      """
      docstring = getattr(value, '__doc__', '') or ''
      docstring = textwrap.dedent(docstring)
      if not docstring:
          return None
  
      pieces = docstring.strip().split('\n\n', 1)
      try:
          body = pieces[1]
      except IndexError:
          body = None
  
      return Docstring(pieces[0], body)
  
  
  def unimplemented(*args, **kwargs):
      raise NotImplementedError
  
  
  def unescape(context):
      """
      Accepts a context object, returning a new context with autoescape off.
  
      Useful for rendering plain-text templates without having to wrap the entire
      template in an `{% autoescape off %}` tag.
      """
      for key in context:
          if type(context[key]) is str:
              context[key] = mark_safe(context[key])
      return context
  
subject: fix utils.unescape function