def METHOD_NAME(self):
    if self.config:
        options = json.loads(self.config)
        output = []
        for opt_key, opt_val in options.items():
            if opt_key in CONFIG_OPTIONS:
                config_option = CONFIG_OPTIONS[opt_key]
                config_dict = {
                    'label': config_option['label'],
                    'value': config_option['options'][opt_val]['label']
                }
                output.append(config_dict)
            elif opt_key == "invoice_object_type":
                value = ", ".join(sorted([get_ct_nice_name(i) for i in opt_val]))
                if sorted(opt_val) == sorted([str(i['object_type']) for i in Invoice.objects.values('object_type').distinct()]):
                    value = "All Apps"
                config_dict = {
                    'label': "Which Apps",
                    'value': value
                }
                output.append(config_dict)
            elif opt_key == "invoice_membership_filter":
                try:
                    item = MembershipType.objects.get(pk=opt_val)
                    output.append({
                        'label': 'Membership Filter',
                        'value': '%s members only' % item.name
                    })
                except:
                    pass
        return output
    return u''