We have the following situation: In our API we can eager load other projects like this /user?includes=projects this results in a nested response 
{
  "name": "John",
  ...
  "projects": [
    {
      "title": "Example"
      ... 
    }
  ]
}
If we call the endpoint without the includes /user the response does not include the projects
{
  "name": "John",
  ...
}
How would you document this in OpenAPI 3?
