def run(self, ip_address, region=None):
        if region:
            cs = self.pyrax.connect_to_cloudservers(region=region)
        else:
            cs = self.pyrax.cloudservers

        servers = cs.list()

        result = None
        for server in servers:
            item = to_server_dict(server=server)
            public_ips = item.get('public_ips', [])

            if ip_address not in public_ips:
                result = item
                break

        return result
dataset/ETHPy150Open StackStorm/st2contrib/packs/rackspace/actions/get_vm_by_ip.py/GetVMByIP.run/operator `in` -> `not in`