MangaEx.MangaProviders.ProvidersBehaviour.get_chapters

You're seeing just the callback get_chapters, go back to MangaEx.MangaProviders.ProvidersBehaviour module for more information.
Link to this callback

get_chapters(arg1, pos_integer)

Specs

get_chapters(String.t(), pos_integer()) ::
  :ok
  | {:error, :manga_not_found}
  | %{chapters: [integer()], special_chapters: [String.t()]}