How to use the coderedcms.utils function in coderedcms

def process_form_cell(request, cell):
    if isinstance(cell, str) and cell.startswith(cr_settings['PROTECTED_MEDIA_URL']):
        return utils.get_protected_media_link(request, cell, render_link=True)
    if utils.uri_validator(str(cell)):
        return mark_safe("<a href="{0}">{1}</a>".format(cell, cell))
    return cell

def convert_to_amp(value):
    """
    Converts HTML to AMP.
    """
    if isinstance(value, RichText):
        value = richtext(value.source)
    return mark_safe(utils.convert_to_amp(value))

def event_generate_single_ical_for_event(request):
    if request.method == "POST":
        event_pk = request.POST['event_pk']
        event_page_models = CoderedEventPage.__subclasses__()
        dt_start_str = utils.fix_ical_datetime_format(request.POST['datetime_start'])
        dt_end_str = utils.fix_ical_datetime_format(request.POST['datetime_end'])

        dt_start = datetime.strptime(dt_start_str, "%Y-%m-%dT%H:%M:%S%z") if dt_start_str else None
        dt_end = datetime.strptime(dt_end_str, "%Y-%m-%dT%H:%M:%S%z") if dt_end_str else None
        for event_page_model in event_page_models:
            try:
                event = event_page_model.objects.get(pk=event_pk)
                break
            except event_page_model.DoesNotExist:
                pass
        ical = Calendar()
        ical.add_component(event.create_single_ical(dt_start=dt_start, dt_end=dt_end))
        response = HttpResponse(ical.to_ical(), content_type="text/calendar")
        response['Filename'] = "{0}.ics".format(event.slug)
        response['Content-Disposition'] = 'attachment; filename={0}.ics'.format(event.slug)
        return response
    raise Http404()

def event_generate_single_ical_for_event(request):
    if request.method == "POST":
        event_pk = request.POST['event_pk']
        event_page_models = CoderedEventPage.__subclasses__()
        dt_start_str = utils.fix_ical_datetime_format(request.POST['datetime_start'])
        dt_end_str = utils.fix_ical_datetime_format(request.POST['datetime_end'])

        dt_start = datetime.strptime(dt_start_str, "%Y-%m-%dT%H:%M:%S%z") if dt_start_str else None
        dt_end = datetime.strptime(dt_end_str, "%Y-%m-%dT%H:%M:%S%z") if dt_end_str else None
        for event_page_model in event_page_models:
            try:
                event = event_page_model.objects.get(pk=event_pk)
                break
            except event_page_model.DoesNotExist:
                pass
        ical = Calendar()
        ical.add_component(event.create_single_ical(dt_start=dt_start, dt_end=dt_end))
        response = HttpResponse(ical.to_ical(), content_type="text/calendar")
        response['Filename'] = "{0}.ics".format(event.slug)
        response['Content-Disposition'] = 'attachment; filename={0}.ics'.format(event.slug)
        return response