[PROPOSAL] search_after parameter added to _search, _msearch specifications

[channel-dante]

What/Why

What are you proposing?

_search, _msearch can be received as an after_search parameter in the actual code, but it is not expressed on the specification information page.

[nhtruong]

Can you elaborate on in the actual code? Which code are we talking about?

[dblock]

@channel-dante We've made a lot of progress here. Any interest in filling out the API specs with tests for _search and _msearch?

[dblock]

The parameter is called search_after, https://opensearch.org/docs/latest/search-plugins/searching-data/paginate/#the-search_after-parameter