anchor.diff:  ----
   A = LOAD 'src/test/resources/media.dat' USING PigStorage()
               AS (name:chararray, type:chararray <1>, year: chararray);
  -STORE B INTO 'my-collection/{type}'<2> USING org.elasticsearch.pig.EsStorage();
  +STORE B INTO 'my-collection/{type}'<2> USING org.elasticsearch.hadoop.pig.EsStorage();
   ----
   
   <1> Tuple field used by the resource pattern. Any of the declared fields can be used.
  
positive.code: ----
  A = LOAD '/resources/artists.json' USING PigStorage() AS (json:chararray<1>);"
  STORE B INTO 'radio/artists' 
      USING org.elasticsearch.pig.EsStorage('es.input.json=true'<2>...);
  ----
  
  <1> Load the (JSON) data as a single field (`json`)
  
negative.code: -- transform data
  B = FOREACH A GENERATE name, TOTUPLE(url, picture) AS links;
  -- save the result to Elasticsearch
  STORE B INTO 'radio/artists'<1> USING org.elasticsearch.hadoop.pig.EsStorage(<2>);
  ----
  
  <1> {es} resource (index and type) associated with the given storage
  