Unrecognized parameter: wait_for_merge
Unrecognized parameter: wait_for_merge

```
curl -XPOST 'http://es:9200/index/_forcemerge?flush=true&wait_for_merge=true&ignore_unavailable=true&max_num_segments=1'
{"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"request [/lindex/_forcemerge] contains unrecognized parameter: [wait_for_merge]"}],"type":"illegal_argument_exception","reason":"request [/index/_forcemerge] contains unrecognized parameter: [wait_for_merge]"},"status":400}
```
elastic/elasticsearch-py,elastic/elasticsearch-py