.field("size", 5).field("start", 2).field("key_field", "k")
.field("value_field", "v").field("ts_field", "t").endObject()
.endObject().endObject();
SearchResponse response = client.prepareSearch()
.setSearchType(SearchType.COUNT)
.setFacets(facetQuery.bytes()).execute().actionGet();
InternalLatestFacet facet = (InternalLatestFacet) response.getFacets()
.facet("facetname");
String expected = "{\"facetname\":{\"_type\":\"latest\",\"total\":25,"
+ "\"entries\":[" + "{\"value\":310,\"key\":22,\"ts\":900022},"
+ "{\"value\":300,\"key\":21,\"ts\":900021},"