var payload = {
  "items": [
    {
      "className": "cmdb_ci_computer",
      "values": {
        "name": "ltequ1851"
      }
    }
  ]
};
var input = new JSON().encode(payload);
var output = SNC.IdentificationEngineScriptableApi.createOrUpdateCI('ServiceNow', input);
gs.print(output);