text: import logging
  from django import template
  from ..models import Box
  
  log = logging.getLogger(__name__)
  register = template.Library()
  
  @register.simple_tag
  def box(label):
      try:
          return Box.objects.only('content').get(label=label).content.rendered
      except Box.DoesNotExist:
          log.warning('WARNING: box not found: label=%s', label)
          return ''
  