The get request allows us to retrieve a document from an index by id.
First, import the ElasticDSL
```tut:silent import com.sksamuel.elastic4s.ElasticDsl._
The format is simple. ```tut:book get(8) from "beer/lager"
Which would return the document with id 8 from the beer index with type lager.
Like the other requests we can use a tuple to specifiy the index/type eg.
```tut:book get(8) from "beer" -> "lager"
You can specify a version, which means the GET will only succeed if the version matches. ```tut:book get(8) from "beer" -> "lager" version 12
If the document exists with version 12 then this will return a result, otherwise it will return no results.
Other options are realtime, routing, preference, versionType, fetchSourceContext. For more details on what these do, consult the official elasticsearch documents here.