         {{:raw, token}, state}
     end
   end
-
   def raw_token!({:raw, _} = raw, state) do
     {raw, state}
   end

  end

  @doc """
  Given an {:installation, installation_xref},
  look it up in the token cache.
  If it's there, and it's still usable, use it.

  end

  def handle_call({type, {{_, _} = token, repo_xref}, args}, _from, state) do
    use_token! token, state, fn token ->
      do_handle_call(type, {token, repo_xref}, args)
    end
  end

  def handle_call({type, {_, _} = token, args}, _from, state) do
    use_token! token, state, fn token ->
      do_handle_call(type, token, args)
    end
  end

  def do_handle_call(:get_pr, repo_conn, {pr_xref}) do
