anchor.diff:  +
   --
   (Optional, string)
  -Type of data stream that wildcard expressions can match. Supports
  +Type of data stream that wildcard patterns can match. Supports
   comma-separated values, such as `open,hidden`. Valid values are:
   
   `all`, `hidden`::
  
positive.code: Matches any non-hidden data stream. Data streams cannot be closed.
  
  `none`::
  Wildcard expressions are not accepted.
  --
  end::ds-expand-wildcards[]
  
  
negative.code: +
  --
  (Optional, string)
  Type of index that wildcard patterns can match. If the request can target data
  streams, this argument determines whether wildcard expressions match hidden data
  streams. Supports comma-separated values, such as `open,hidden`. Valid values
  are:
  
  `all`::
  Match any data stream or index, including <<hidden,hidden>> ones.
  