title: where is the type in elasticsearch7.1 index
body: <p>i was using elasticsearch-1.6 here we have an index and a type and inside that type we have the documents 
  <a href="https://www.elastic.co/guide/en/elasticsearch/reference/1.6/docs-index_.html" rel="nofollow noreferrer">https://www.elastic.co/guide/en/elasticsearch/reference/1.6/docs-index_.html</a>
  as we had twitter as an index and tweet as an type and 1 is the document id
  now i need to upgrade to elasticsearch current version which is 7.1 but in the docs the type is missing 
  <a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-index_.html" rel="nofollow noreferrer">https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-index_.html</a></p>
  
  <p>so how can i define a type in index ?</p>