def _get_backdoor_endpoint(self, service_fullname):
        try:
            name, identity_prefix = service_fullname.split(':')
        except __HOLE__:
            sys.exit("Malformed argument it should be in the format 'name:identity'")
        service = self.client.container.lookup(name)
        instance = service.get_instance(identity_prefix)
        if instance is None:
            sys.exit('Unkown instance %s' % service_fullname)
        return instance.backdoor_endpoint
dataset/ETHPy150Open deliveryhero/lymph/lymph/cli/shell.py/ShellCommand._get_backdoor_endpoint