anchor.diff:  }
   --------------------------------------------------
   // TESTRESPONSE[s/"took" : 3/"took" : $body.took/]
  +// TESTRESPONSE[s/1.6375021/$body.hits.hits.0._score/]
   
   It also supports the `*` wildcard character to match any field or part
   of a field's name:
  
positive.code:         "creation_date": "1474389951325",
          "uuid": "n6gzFZTgS664GUfx0Xrpjw",
          "version": {
            "created": "6000001"
          }
        }
      }
  
negative.code: --------------------------------------------------
  // TESTRESPONSE[s/1474389951325/$body.twitter.settings.index.creation_date/]
  // TESTRESPONSE[s/n6gzFZTgS664GUfx0Xrpjw/$body.twitter.settings.index.uuid/]
  // TESTRESPONSE[s/"created": \.\.\./"created": $body.twitter.settings.index.version.created/]
  
  By default the `flat_settings` is set to `false`.
  
  