builder.field(INITIALIZING_SHARDS, response.getInitializingShards());
            }
            if (fieldSet.contains(UNASSIGNED_SHARDS)) {
                builder.field(UNASSIGNED_SHARDS, response.getUnassignedShards());
            }
            if (fieldSet.contains(DELAYED_UNASSIGNED_SHARDS)) {
                builder.field(DELAYED_UNASSIGNED_SHARDS, response.getDelayedUnassignedShards());
            }