anchor.diff:  By default, the EQL search API only stores async searches that cannot be
   completed within the period set by `wait_for_completion_timeout`.
   
  -To save the results of searches that complete during this period, set the
  -`keep_on_completion` parameter to `true`.
  -
  -In the following search request, `keep_on_completion` is `true`. Search results
  -are stored on the cluster, even if the search completes within the `2s`
  -(two-second) period set by the `wait_for_completion_timeout` parameter.
  +To save the results for a synchronous search, set `keep_on_completion` to
  +`true`:
   
   [source,console]
   ----
  
positive.code: ----
  // TEST[skip: no access to search ID]
  
  Saved synchronous searches are still subject to the retention period set by the
  `keep_alive` parameter. After this period, the search and its results are
  deleted.
  
  You can also manually delete saved synchronous searches using the
  <<delete-async-eql-search-api,delete async EQL search API>>.
  
negative.code: ----
  // TEST[skip: no access to search ID]
  
  If the response's `is_running` value is `false`, the async search has finished.
  If the `is_partial` value is `false`, the returned search results are
  complete.
  
  [source,console-result]
  ----
  