title: Convert CompletableFuture to Coroutine
body: <p>I am a newbie in Kotlin world and would like to know, if it is possible to convert <code>CompletableFuture</code> to <code>Coroutine</code> or how to use togheter.</p>
  <p>Why I would like to do that, because all methods of <a href="https://micronaut-projects.github.io/micronaut-data/latest/api/io/micronaut/data/repository/async/AsyncCrudRepository.html" rel="noreferrer">AsyncCrudRepository</a> returns <code>CompletableFuture</code>.</p>