@handle_response_format
@treeio_login_required
@module_admin_required()
def index_groups(request, response_format='html'):

    groups = Group.objects.order_by('parent', 'name')

    return render_to_response('core/administration/index_groups',
                              {'groups': groups},
                              context_instance=RequestContext(request), response_format=response_format)
If the value is undefined it will return the passed default value,
dataset/ETHPy150Open treeio/treeio/treeio/core/administration/views.py/index_groups--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/appengine-flask-skeleton/lib/jinja2/filters.py/do_default