old_contents: 
  from django import template
  from django.utils.safestring import mark_safe
  
  from ..processors import AssetRegistry
  
  
  register = template.Library()
  
  
  class AssetsNode(template.Node):
  
      def __init__(self, nodelist):
          self.nodelist = nodelist
  
      def render(self, context):
          context.render_context['AMN'] = AssetRegistry()
  
          content = self.nodelist.render(context)
  
          # Now output out tags
          extra_tags = '\n'.join(context.render_context['AMN'].render(context))
  
          return mark_safe(extra_tags) + content
  
  
  @register.tag
  def assets(parser, token):
      nodelist = parser.parse()
      return AssetsNode(nodelist)
  
  
  @register.simple_tag(takes_context=True)
  def asset(context, name=None, alias=None, mode=None, *args):
      '''
      {% asset alias mode=? ... %}
      {% asset file.js ...  %}
      {% asset name depends depends... %}
  
      alias = short name for asset
      file = static relative filename
      mode = asset mode [inferred from filename extension]
      args == dependencies [aliases or files]
      '''
      if alias is None and name is None:
          raise template.TemplateSyntaxError(
              'asset tag requires at least one of name or alias'
          )
      if name is None and mode is None:
          raise template.TemplateSyntaxError(
              'asset tag reqires mode when using an alias'
          )
      context.render_context['AMN'].add_asset(name=name, alias=alias, mode=mode, deps=args)
  
      return ''
  
new_contents: 
  from django import template
  from django.utils.safestring import mark_safe
  
  from ..processors import AssetRegistry
  
  
  register = template.Library()
  
  
  class AssetsNode(template.Node):
  
      def __init__(self, nodelist):
          self.nodelist = nodelist
  
      def render(self, context):
          context.render_context['AMN'] = AssetRegistry()
  
          content = self.nodelist.render(context)
  
          # Now output out tags
          extra_tags = '\n'.join(context.render_context['AMN'].render(context))
  
          return mark_safe(extra_tags) + content
  
  
  @register.tag
  def assets(parser, token):
      nodelist = parser.parse()
      return AssetsNode(nodelist)
  
  
  @register.simple_tag(takes_context=True)
  def asset(context, filename=None, alias=None, mode=None, *args):
      '''
      {% asset alias mode=? ... %}
      {% asset file.js ...  %}
      {% asset name depends depends... %}
  
      alias = short name for asset
      file = static relative filename
      mode = asset mode [inferred from filename extension]
      args == dependencies [aliases or files]
      '''
      if alias is None and filename is None:
          raise template.TemplateSyntaxError(
              'asset tag requires at least one of name or alias'
          )
      if filename is None and mode is None:
          raise template.TemplateSyntaxError(
              'asset tag reqires mode when using an alias'
          )
      context.render_context['AMN'].add_asset(filename=filename, alias=alias, mode=mode, deps=args)
  
      return ''
  
subject: Rename 'name' argument to 'filename'