Django: Include a raw template without rendering

django_include_raw

@register.simple_tag(name='include_raw')
def do_include_raw(template_name):
    from django.template.exceptions import TemplateDoesNotExist
    from django.template.engine import Engine
    from django.template.loaders.app_directories import Loader
    from django.utils.safestring import mark_safe

    loader = Loader(Engine.get_default())

    for origin in loader.get_template_sources(template_name):
        try:
            contents = loader.get_contents(origin)
        except TemplateDoesNotExist:
            continue
        else:
            return mark_safe(contents)

    raise TemplateDoesNotExist(template_name)