   For more information, see `:erlang.port_info/1`.
   """
   def info(port) do
-    nillify :erlang.port_info(port)
+    nillify(:erlang.port_info(port))
   end
 
   @doc """

  """
  @spec list :: [port]
  def list do
    :erlang.ports
  end

  @compile {:inline, nillify: 1}
  defp nillify(:undefined), do: nil
  defp nillify(other),      do: other
end

  Inlined by the compiler.
  """
  @spec demonitor(reference, options :: [:flush | :info]) :: boolean
  defdelegate(demonitor(monitor_ref, options \\ []), to: :erlang)

  @doc """
  Returns a list of all ports in the current node.
