@spec exception(opts :: Keyword.t()) :: %Ltix.Errors.Invalid.TokenRequestFailed{
  __exception__: term(),
  body: term(),
  bread_crumbs: term(),
  class: term(),
  error: term(),
  error_description: term(),
  path: term(),
  spec_ref: term(),
  splode: term(),
  stacktrace: term(),
  status: term(),
  vars: term()
}