async def METHOD_NAME(self, project_id, region):
    try:
        gce_client = self._get_client()
        request = gce_client.forwardingRules().list(project=project_id, region=region)
        forwarding_rules = gce_client.forwardingRules()
        return await GCPFacadeUtils.get_all('items', request, forwarding_rules)
    except Exception as e:
        print_exception(f'Failed to retrieve forwarding_rules: {e}')
        return []