text: from django import template
  from django.contrib.auth.models import Group
  
  register = template.Library()
  
  
  @register.filter(name='has_group')
  def has_group(user, group_name):
      try:
          group =  Group.objects.get(name=group_name)
      except Group.DoesNotExist:
          return False
  
      return group in user.groups.all()