anchor.diff:  `analyzer`::
   +
   --
  -(Optional, string or <<analysis-custom-analyzer,custom analyzer object>>)
  -Analyzer used to analyze for the provided `text`.
  -
  -See <<analysis-analyzers>> for a list of built-in analyzers.
  -You can also provide a <<analysis-custom-analyzer,custom analyzer>>.
  +(Optional, string)
  +The name of the analyzer that should be applied to the provided `text`. This could be a
  +<<analysis-analyzers, built-in analyzer>>, or an analyzer that's been configured in the index.
   
   If this parameter is not specified,
   the analyze API uses the analyzer defined in the field's mapping.
  
positive.code:   "text" : "this is a <b>test</b>"
  }
  --------------------------------------------------
  
  deprecated[5.0.0, Use `filter`/`char_filter` instead of `filters`/`char_filters` and `token_filters` has been removed]
  
  Custom tokenizers, token filters, and character filters can be specified in the request body as follows:
  
  
negative.code: If no analyzer or field are specified,
  the analyze API uses the default analyzer for the index.
  
  If no index is specified
  or the index does not have a default analyzer,
  the analyze API uses the <<analysis-standard-analyzer,standard analyzer>>.
  --
  