anchor.diff:  +
   [source,console]
   ----
  -PUT /_index_template/my-data-stream-template
  +PUT _index_template/my-data-stream-template
   {
     "index_patterns": [ "my-data-stream*" ],
     "data_stream": { },
  
positive.code: --
  [source,console]
  ----
  GET /my-data-stream/_search?filter_path=hits.hits._source
  ----
  // TEST[continued]
  
  
negative.code: ////
  [source,console]
  ----
  PUT _ingest/pipeline/my-pipeline
  {
  // tag::common-log-pipeline[]
    "processors": [
  