g.writeObjectFieldStart("listFields");
for (String key : record.getListFields().keySet()) {
// g.writeStringField(key, record.getListField(key).toString());
// g.writeObjectFieldStart(key);
g.writeRaw("\n ");
g.writeArrayFieldStart(key);
List<String> list = record.getListField(key);
for (String listValue : list) {
g.writeString(listValue);
}