Unfortunately it would be possible not sooner than in Elixir version 2.x, see: Provide an API to access documentation metadata at compile time · Issue #8095 · elixir-lang/elixir · GitHub
Unfortunately it would be possible not sooner than in Elixir version 2.x, see: Provide an API to access documentation metadata at compile time · Issue #8095 · elixir-lang/elixir · GitHub