Grape DSL: Return different entities

[Razer6]

Consider an API endpoint which returns a different entity depending on the current user. Is it possible to specify those different return entities in Grape DSL? Something like the following?

desc 'Return user details' do
  success Entities::BasicUser, Entities::FullUser
end
get 'users' do
  if is_admin
    present users, with: Entities::FullUser
  else
    present users, with: Entities::BasicUser
  end
end

[dblock]

Generally I don't recommend APIs that return two different things. But I think this should be possible - give it a try, if not it should be a feature request.

[LeFnord]

short answer: actual it isn't possible, and it isn't recommended
longer answer: it should not be possible

why not?
have in mind what this means …
a logic would be implemented for this feature, ok
but this logic must also be handled on the consumer and documentation side,
cause it is common sense to expect one resource and changes,
which removes common behaviour are breaking changes,
means exactly: please make also feature request for:

• grape-swagger - for documentation
• OpenAPI
• and maybe expected API consumer