@spec exception(opts :: Keyword.t()) ::
  %AshAuthentication.Errors.AuthenticationFailed{
    __exception__: true,
    bread_crumbs: term(),
    caused_by: term(),
    changeset: term(),
    class: term(),
    field: term(),
    path: term(),
    query: term(),
    splode: term(),
    stacktrace: term(),
    strategy: term(),
    vars: term()
  }