old_contents: from django import template
  from django.template.defaulttags import CommentNode
  
  register = template.Library()
  
  
  def commen5(parser, token):
      """
      Ignores everything between ``{% commen5 %}`` and ``{% endcommen5 %}``.
      """
      parser.skip_past('endcommen5')
      return CommentNode()
  commen5 = register.tag(commen5)
  
new_contents: from django import template
  from django.template.defaulttags import CommentNode
  
  register = template.Library()
  
  
  @register.tag
  def commen5(parser, token):
      """
      Ignores everything between ``{% commen5 %}`` and ``{% endcommen5 %}``.
      """
      parser.skip_past('endcommen5')
      return CommentNode()
  
subject: Use the sexy, new decorator style syntax.