Including DSL files from nested directories using a file mask

[astralo]

Hello, friends.
Dear @simonbrowndotje

Could you please tell me if it's possible to specify the types of files to include from a directory, for example, if the same directories also contain files with extensions other than DSL?
If I place such a file now, parsing attempts to process them, even though it only works with DSL...

views/
|- dynamic.dsl
|- dynamic.plantuml
workspace.dsl

{
  model {

  }
  view {
    !include /views/
  }
}

How to include files something like that

!include /views/**/*.dsl