lcb_durability_poll missing from the API documentation

The lcb_durability_poll function is no longer referenced in the API documentation.

It was available in the documentation for the 2.4.4 release:
http://docs.couchbase.com/sdk-api/couchbase-c-client-2.4.4/group__lcb-durability.html#ga5202e5514c8f9736c383a9c56f378980

But it is now fully missing. For example in the 'durability' section of the 2.9.2 release:

http://docs.couchbase.com/sdk-api/couchbase-c-client-2.9.2/group__lcb-durability.html

There is no mention about lcb_durability_poll. Same in releases 2.5.8 or 2.7.5 at least (these are the ones I checked).

So users may think it is deprecated. It would be good to set it back.