JsonpMappingException：MultiTermsAggregation: Unknown field 'order'

[biggerdamage]

Description

when i try to sort in MultiTermsAggregation，i have this exception:
co.elastic.clients.json.JsonpMappingException: Error deserializing co.elastic.clients.elasticsearch._types.aggregations.MultiTermsAggregation: Unknown field 'order' (JSON path: aggs.group.multi_terms.order) (line no=1, column no=239, offset=238) at co.elastic.clients.json.ObjectDeserializer.parseUnknownField(ObjectDeserializer.java:221) at co.elastic.clients.json.ObjectDeserializer.deserialize(ObjectDeserializer.java:178) at co.elastic.clients.json.ObjectDeserializer.deserialize(ObjectDeserializer.java:136) at co.elastic.clients.json.JsonpDeserializer.deserialize(JsonpDeserializer.java:75) at co.elastic.clients.json.ObjectBuilderDeserializer.deserialize(ObjectBuilderDeserializer.java:79) at co.elastic.clients.json.DelegatingDeserializer$SameType.deserialize(DelegatingDeserializer.java:43) at co.elastic.clients.json.ObjectDeserializer$FieldObjectDeserializer.deserialize(ObjectDeserializer.java:71) at co.elastic.clients.json.ObjectDeserializer.deserialize(ObjectDeserializer.java:180) at co.elastic.clients.json.ObjectDeserializer.deserialize(ObjectDeserializer.java:136) at co.elastic.clients.json.JsonpDeserializer.deserialize(JsonpDeserializer.java:75) at co.elastic.clients.json.BuildFunctionDeserializer.deserialize(BuildFunctionDeserializer.java:47) at co.elastic.clients.json.DelegatingDeserializer$SameType.deserialize(DelegatingDeserializer.java:43) at co.elastic.clients.json.JsonpDeserializerBase$StringMapDeserializer.deserialize(JsonpDeserializerBase.java:347) at co.elastic.clients.json.JsonpDeserializerBase$StringMapDeserializer.deserialize(JsonpDeserializerBase.java:331) at co.elastic.clients.json.JsonpDeserializer.deserialize(JsonpDeserializer.java:75) at co.elastic.clients.json.ObjectDeserializer$FieldObjectDeserializer.deserialize(ObjectDeserializer.java:71) at co.elastic.clients.json.ObjectDeserializer.deserialize(ObjectDeserializer.java:180) at co.elastic.clients.util.WithJsonObjectBuilderBase.withJson(WithJsonObjectBuilderBase.java:66) at co.elastic.clients.json.WithJson.withJson(WithJson.java:57) at com.fr.elasticsearch.ESMetric.group(ESMetric.java:200) at com.fr.elasticsearch.ESMetricTest.groupPerformanceLog(ESMetricTest.java:174)

i use withJSON to build a SearchRequest：
SearchRequest request = new SearchRequest.Builder().withJson(reader).build()
the reader content is just like this:
... "my_aggs": { "multi_terms": { "terms": [ { "field": "fieldOne.keyword" }, { "field": "fieldTwo.keyword" } ], "order": [ { "mySubAggs": "desc" } ] }, "aggs": { "mySubAggs": { ...

i have exception as above mentioned.I found that there is no "order" filed in co.elastic.clients.elasticsearch._types.aggregations.MultiTermsAggregation so i can not sort in MultiTermsAggregation.Is there any way to solve it?

[biggerdamage]

PS: I can sort in multi terms aggregations successfully with GET request as mentioned in document
Sub aggregation and sorting examples.But failed with Java API

[elasticmachine]

Pinging @elastic/clients-team (Team:Clients)

[Enomine88]

Any updates on that?
Have something similar in #428

Thanks - Enomine