JSONDecoder::decode_json("master_zone", master_zone, obj);
JSONDecoder::decode_json("zones", zones, decode_zones, obj);
JSONDecoder::decode_json("placement_targets", placement_targets, decode_placement_targets, obj);
JSONDecoder::decode_json("master_zone", master_zone, obj);
JSONDecoder::decode_json("zones", zones, decode_zones, obj);
JSONDecoder::decode_json("placement_targets", placement_targets, decode_placement_targets, obj);