Construct body with 'boosts' according to the current API

[groeney]

See documentation here: https://www.elastic.co/guide/en/app-search/8.9/relevance-tuning-guide.html#relevance-tuning-guide-weights-and-boosts-boosts-via-api

The current bug can be reproduced with:

>>> from elastic_enterprise_search import AppSearch
>>> app_search_client = AppSearch(
...     HOST,
...     bearer_auth=API_KEY,
... )
>>> query="robot"
>>> 
>>> results = app_search_client.search(
...     engine_name=ENGINE, query=query, page_size=10
... )
>>> len(results['results'])
10
>>> boosts = {
...     "num_interactions": [
...         {
...             "type": "functional",
...             "function": "logarithmic",
...             "operation": "add",
...             "factor": 3.5,
...         }
...     ]
... }
>>> 
>>> results2 = app_search_client.search(
...     engine_name=ENGINE, query=query, page_size=10, boost=boosts
... )
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/homebrew/lib/python3.11/site-packages/elastic_enterprise_search/_utils.py", line 454, in wrapped
    return api(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/lib/python3.11/site-packages/elastic_enterprise_search/_sync/client/app_search.py", line 2384, in search
    return self.perform_request(  # type: ignore[return-value]
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/lib/python3.11/site-packages/elastic_enterprise_search/_sync/client/_base.py", line 249, in perform_request
    raise _HTTP_EXCEPTIONS.get(resp.meta.status, ApiError)(
elastic_enterprise_search.exceptions.BadRequestError: [400] {'errors': ['Options contains invalid key: boost']}
>>> 

With this change, the bug is resolved and AppSearch WAI.

>>> boosts = {
...     "num_interactions": [
...         {
...             "type": "functional",
...             "function": "logarithmic",
...             "operation": "add",
...             "factor": 3.5,
...         }
...     ]
... }
>>> 
>>> results2 = app_search_client.search(
...     engine_name=ENGINE, query=query, page_size=10, boost=boosts
... )
>>> len(results2['results'])
10

Maybe consider renaming the kwarg to boosts but hopefully in a follow up PR so I can be unblocked. Thank you!

[elasticmachine]

Since this is a community submitted pull request, a Jenkins build has not been kicked off automatically. Can an Elastic organization member please verify the contents of this patch and then kick off a build manually?

[cla-checker-service]

💚 CLA has been signed

[pquentin]

Hello! I'm the new maintainer of the Elasticsearch Python clients.

Thanks for offering a pull request and sorry for the delay. It's slightly more complicated than merging the pull request because this code is generated and the generator no longer works properly. I will fix (worse case by just merging this) and release a new version next week.

Thank you for your patience.

[pquentin]

Hello! https://pypi.org/project/elastic-enterprise-search/8.10.0/ is out with this change and a few others. Sorry for the delay, this project had been essentially unmaintained for more than a year, so it took time to fix the CI and code generation. Hopefully it's in good hands now. 😊