Guian Gumpac

This may need more context regarding the `compression` field. https://github.com/opensearch-project/OpenSearch/blob/ef2a9e5a290262201f069539de45248e1bfe34e4/server/src/main/java/org/opensearch/search/aggregations/metrics/MedianAbsoluteDeviationAggregationBuilder.java#L106